this is bbc news. i'm reeta chakrabarti. the headlines at ten: police in iran say one of their officers has been shot dead, as anti—government protests continue for a fifth night. tributes are paid to a british family of five killed in a seaplane crash in sydney. the youngest victim was 11 years old. police are investigating the overnight deaths of four young men in unrelated knife attacks across london. also this hour — up to 16—hundred vehicles are destroyed in a blaze in a liverpool car park on new year's eve. the fire, believed to have been started accidentally, engulfed a multi—storey car park next to the liverpool echo arena. in a new year's day speech, north korea's leader warns donald trump that he has a nuclear button on his desk — and is ready to use it. and deal with your own rubbish — china's message to britain as it stops recycling imported plastic waste. good evening and

welcome to bbc news. police in iran say one of their officers has been shot dead as anti—government protests continue across the country. this is believed to be the first death of a security force member since the unrest began on thursday. another ten people were killed overnight in the countrywide unrest which began as a protest against the falling standard of living, as rana rahimpour reports. the fifth day of protests in iran. once again, thousands of people have taken to the streets. they are angry at unemployment, rising prices, and what many think is widespread corruption. it's the boldest challenge to the country's leadership in nearly a decade.

the demonstrations began in the north—western city of mashhad, a key base for president rouhani's most outspoken critics. and has quickly turned into a widespread antiestablishment movement. this is the biggest show of dissent in iran since the post—election rallies of 2009. they were large in size but limited to urban areas of the country like the capital, tehran. this time the protests are more widespread with towns and cities all over the country looking for social, political, and economic change. authorities are continuing to suspend social media platforms out of fear they will be used to organise more protests. the bbc has received reports of text messages, like this one, being sent to people urging them not to take part. a handful of pro—government marchers are attempting to counter the wider demonstrations, but with limited information coming

out of the country it's difficult to gauge how many people are involved. in the last 2a hours, president rouhani has spoken out twice against the protests. accusing iran's enemies of instigating the unrest. translation: our victory against the us and its regime is unbearable for our enemies. our success in the region is intolerable for them. they are after revenge and are trying to provoke people. but his words have failed to calm the situation. in certain areas of the country unemployment is as high as 60%, and reports of extreme corruption have iranians frustrated and hungry for change. at least 12 people have died since the protests began. and with no sign of stopping, that number looks set to rise. rana rahimpour, bbc news. and the last few minutes the foreign

secretary boris johnson and the last few minutes the foreign secretary borisjohnson has issued a statement which says... air accident investigators in australia say it may take months before they know why a seaplane carrying a prominent british businessman and his family crashed on new year's eve. richard cousins — who ran a multi—billion pound catering company — was killed along with his two sons, his fiance, her daughter and the pilot. they were on holiday and returning to sydney after a family outing. phil mercer reports from sydney. the wreckage of the seaplane lies 13 metres below the surface of the hawkesbury river. one of the victims was the british businessman richard cousins, the chief executive of the world's largest catering firm, compass, who was due to retire later this year. the company confirmed his death in a statement. mr cousins, who was 58, died alongside his fiancee emma bowden and her 11—year—old daughter,

heather. also on board the seaplane that crashed intojerusalem bay — william cousins, who was 25, worked for open britain, a pro—eu group set up in the aftermath of the brexit vote. colleagues said they were shocked by news of his death. his brother, edward, who was 23, had recently graduated from the university of st andrews. losing both my godson and his sibling, and my brother—in—law as well, has left a huge hole. they had a lot of friends. they had... they were very, very popular lads. and that's because they've had a fantastic upbringing, from both my sister and richard. the pilot, gareth morgan, had done more than 10,000 flying hours, 9,000 of which were on seaplanes. the pilot had collected mr cousins and members of his family from an exclusive waterfront restaurant, and was heading back to rose bay on sydney harbour.

shortly after take—off, the plane plummeted into the water. investigators say it quickly sank, and there were no survivors. this is people that have come over on holidays to visit australia. they were in one of the most beautiful parts of the world. and for this to happen to them at a place like that is nothing more than just tragic. it could take months to work out how and why a routine sightseeing trip could end in utter disaster. air crash investigators have begun their work. their task won't be easy. the wreckage of the seaplane has been submerged in more than 40ft of water. and although these idyllic bays and inlets are geographically close to sydney, the crash site is tucked away and hard to get to. sydney seaplanes, which owns the aircraft, has suspended all its flights until further notice.

phil mercer, bbc news, sydney. four young men have been stabbed to death in london in a 2a hour period either side of the new year celebrations. three men, aged 17,18 and 20, were killed yesterday. a fourth victim, another 20—year—old , died after being stabbed in the early hours of this morning. police say the deaths are unrelated. ben ando reports. late morning, enfield, north london. the victim, aged 18. early evening, west ham, the victim, 20 years old. three hours later, tulse hill, south london, a teenager of 17. and then in the early hours of new year's day, a 20—year—old man killed in old street. all four, stabbed to death, but according to the police, none of the murders are linked. tragically, there are four families who awoke this morning to the heartbreaking news that they've lost loved ones to the callous use of knives as lethal weapons. our detectives are working tirelessly today and going forward to bring those who've committed

these murderers to justice. the three murders before midnight take the total number of fatal stabbings in london for 2017 to 80. that compares with 60 in 2016. police say the reasons for the increase are complex, but it underlines the importance of stop—and—search. my mum needs me alive. in november, a campaign to convince teenagers not to carry knives was launched. london needs me alive... one campaigner who lost a son to knife crime says youngsters need more help to make the right choice. so i don't carry a knife... they are living in total fear. they weren't born killers. they didn'tjust become like that. it's a process. and now, what we've got to do is unravel that process, stage by stage by stage, to get to the core of

the individual, which is the state of their heart and the state of their mindset. as work goes on at the scene of the first knife killing of 2018, the question is, will this worrying trend continue? ben ando, bbc news, south london. earlier i spoke to dal babu, a former chief superintendent with the metropolitan police about how to stop knife crime on the streets of london. what we need to look at is having more of the local authorities, police, third sector organisations working more closely together and i would also point out we have had a significant reduction in resources, not just the significant reduction in resources, notjust the police, 20% reduction in number or police but also reduction local authority funding. reductions in funding to third

sector organisations. it is a huge problem around resources making it difficult. if young people are carrying knives, what can be done to stop them? carrying knives, we have seen an increase in the number of young people carrying them and the police commissioner has been clear she wa nts to commissioner has been clear she wants to seek appropriate sentencing for individuals, it is about using stop and search effectively, not to alienate the community but ultimately it is notjust the police. we need to work with families, work with schools, work with colleges, youth clubs, but if the funding is not there to bring all these agencies together it will be very difficult. that is the challenge, how do we do it? when i was a borough commander every single war had six people on it, but is not the case now. —— every single ward.

you do not have that now. when i was in there, five years ago, 32,500 officers, it is now 30,000. and we have been told there will be further public sector cuts. we have to take a hard look at how we fund public sector organisations and the consequences of not having efficient resources out there to do with individuals. if people are committing crimes we to arrest them, charge them and jailed him. but is that the problem, that is not happening? i am unclear whether the problem is the message is not going out about the dangers of carrying knives or whether you are saying people are not being punished for their crimes. it is probably a bit of both plus the fact the resources are notjust to police resources, we need to look at resources in the local authority, what schools are doing. i would like

to see more schools having knife arches. where lives are detected from interschool? absolutely. i would like more work with them —— work done by agencies other than the police and other ways of getting the message across that young people about the dangers of carrying knives. the metropolitan police are very successful at arresting people who commit murder. if you carry a knife the chances of you being caught are very, very high and we need to get that message across. this destroys the lives clearly of the individual who have had their lives cut short but also destroyed the lives of the individuals who will get 30 years in prison. we need to get the message across and what frustrates me as a wonder is the lack of resources in the local authorities in the third sector organisations in the police so we can sector organisations in the police so we can get a sector organisations in the police so we can get a more sector organisations in the police so we can get a more co—ordinated approach to deal with this properly. police investigating the death of a

woman found any part of a christmas have arrested a man. she was discovered in finsbury park last wednesday, police say she died of a sta b wednesday, police say she died of a stab wound to the abdomen and head injury. eye witnesses have been describing a huge fire which destroyed up to 1,400 vehicles in a multi—storey car park in liverpool. the blaze at king's dock, next to liverpool's echo arena, is said to have spread after one vehicle caught fire yesterday afternoon. firefighters worked through the night and many people were forced into temporary accommodation as nearby buildings were evacuated. danny savage has the story. it was shortly after dark yesterday evening when fire took hold in the multistorey car park on liverpool's famous waterfront. it is understood a small fire in one car spread rapidly, destroying vehicles and then moving

on to all levels of the car park. it was soon a huge blaze. merseyside fire and rescue say it is one of the worst they've ever dealt with. this morning the blackened building was surrounded by fire engines. it's likely it will have to be demolished. and after the fire had been put out this morning, after many hours, some dogs, which had been left in those cars were safely rescued and reunited with their owners. as the dogs were handed back to their owners there was a hug of gratitude for the firefighters. the insurance bill will run to millions of pounds but thankfully no one was hurt. danny savage, bbc news, liverpool. the headlines on bbc news:

police in iran say one of their officers has been shot dead, as anti—government protests continue for a fifth night. a british family of five who died in a seaplane crash near sydney are named — among them the boss of one of the world's largest catering companies. police investigate after four young men are stabbed to death in london — in separate new year attacks. let's get the full round—up of the sport. there was no fairy tale ending for 16 time world darts champion fill the appeal as he bowed out with a defeat to a first—time winner. the former electrician from hastings was in sensationalform

former electrician from hastings was in sensational form and raced former electrician from hastings was in sensationalform and raced into former electrician from hastings was in sensational form and raced into a three lead. taylor nearly sealed his final appearance was the nine dart finish but missed out with the smallest of margins. cross eventually took the title at alexandra palace in london 7—2. he was born in the same year that phil taylor won his first world title, backin taylor won his first world title, back in 1990, as das says goodbye to its greatest ever player. —— as a darts says goodbye. manchester united responded to a run of three straight premier league draws with a 2—0 victory over everton at goodison park. it was decided by two special finishes as well, the opener from antony martial who combined with his france international teammate paul pogba. man of the match pogba was also involved as this solo goal from jesse lingard topped an important win forjose mourinho's side which moves them up to second in the table. lovely goals and the performance was

great from the team today and that helped us to be more confident, shoots, because if you do not shoot you do not score but we did that today very well. liverpool earned a dramatic 2—1win over burnley at turf moor. ragnar klavan bundled in a 94th minute winner afterjohann berg gudmunsson had headed a late equaliser for burnley. forward sadio mane had crashed in a superb opener forjurgen klopp's team who stay in fourth. we have to show, character is fantastic but we have to learn our mentality because you have to use your character all the time, it is not enough it is just there but the boys did a show that tonight on a cold, rainy, windy night in burnley. the pressure will increase on stoke city manager mark hughes after their 1—0 defeat at home to newcastle united — ayoze perez got the winner

in the second half. stoke drop to 16th, 2 points above the relegation zone — having won only two of their last 12 games. the key is everybody sticks together and we get on with it. it's no good feeling sorry for ourselves and looking to blame people, we take it on board, takes responsibility, and do not be called by it. just get on with it. are you confident you can do it? who else will do it? in terms of the knowledge of this group, the time i have been here, i am best place to do that. we just need to be allowed to get on with ourjob and that is what we will do, we will get back together and we will go again. elsewhere, brighton drew 2—2 with bournemouth in an entertaining match on the south coast. leicester city beat huddersfield 3—0 to end a run of back—to—back defeats. in the championship,

aston villa moved into the play—off spots with a rampant 5—0 win over third placed bristol city. elsewhere, bolton moved out of the relegation zone with a 1—0 win over fellow strugglers hull. second placed derby were held to a 1—1 draw by sheffield united. whilst middlesbrough ended preston's nine—match unbeaten run, to give tony pulis his first win as boro boss. queen's park rangers came from behind to beat fourth placed cardiff city 2—1. and hand neil warnock‘s team a 11th straight defeat. in rugby union's pro 1a ulster had a great comeback win to take a bonus point win over munster at the kingspan stadium. munster had been comfortable, leading 17—0 at one stage, but the match turned when their centre sam arnold was red carded for a high tackle. ulster fought back with three late tries, the 24—17 win was sealed by robert lyttle in the final moments. in today's other game leinster strengthened their hold on second place in conference b with a narrow win over connacht. that's all the sport for now.

the leader of north korea, kimjong un, has warned the united states that he has a nuclear button on his desk, ready for use, if his country feels threatened. but his televised new year's day speech also seemed to open up the possibility of better relations with neighbouring south korea. just after the first sun of 2018 rose over the korean peninsula, kim jong—un delivered his new year's address live on state—run television, with an unsurprisingly defiant message for the united states. translation: the entire united states is within range of our nuclear weapons — and the nuclear button is always on my desk. this is reality, not a threat. perhaps more surprising was the olive branch he appeared to offer his neighbour, south korea. he said he hoped the winter olympics

they're about to host would be a success. and said he was considering sending a delegation to the games. that comes as music to the ears of violinist won hyung joon. for ten years, he's tried and failed to organise a peace concert with these young south koreans playing together with north korean musicians. he now hopes to make that happen at the pyeongchang opening ceremony. we have hope that the olympics is coming, and everyone is coming, and it's beyond, you know, political difficulties. so, i really wish north korea will come, and especially with musicians, and we'll be able to play together. the south korean government has welcome to the appeal for dialogue, saying it, too, is willing to engage. after a year of nuclear tests and missile launches, young people living in seoul welcomed the new year, writing down their wishes with hope

that tensions might now reduce, if only in the very immediate future. i feel optimistic, i think everything is attitude, and if we go in here with the right attitude, the right approach, i think we can solve the situation. as a citizen of this country, that's all i can really wish for. it is obvious to anyone in the world that we are in a very tense situation right now. and i think that means we have hope for the future. sophie long, bbc news, seoul. more than 300 women from hollywood's entertainment industry have launched an initiative to tackle sexual harassment in workplaces. the campaign — called time's up — aims to improve legislation and corporate policies, increase access to legal assistance and help more women reach the top levels of industry. it's supported by stars including meryl streep, jennifer lawrence and cate blanchett. in an open letter printed in the new york times,

the women argue that the experiences of women working in less glamorous jobs like farming and catering deserve the same attention as those in the entertainment industry. now, with a nasa mission to mars and a british iceberg expedition to the antarctic on the agenda, there's much to look forward to in the world of science in 2018. here's a look ahead at the top stories and events to watch for this year. hi, i'm rebecca morell, the bbc‘s global science correspondent. and here's what to look out for in 2018. nasa is once again heading to mars. this time it will delve beneath the planet's surface. the insight mission will set down a lander and study the red planet's interior, using a self—hammering probe to burrow deeper down than ever before. the hope is it will help understand how the rocky planet is formed. back on earth, british scientists are leading an expedition to a colossal new iceberg in the antarctic. it broke away from the larsen ice shelf in

the summer and covers an area of almost 6000 square kilometres and weighs 1 trillion tonnes. the researchers want to investigate the hidden marine ecosystem that has been left exposed by the shifting block of ice. in 2018 and a critical new climate report will be released. the international panel on climate change will look at whether it is feasible for the world to keep global temperature rises under 1.5 celsius. it will assess what could happen if we do not. we should also see the much delayed falcon heavy rocket finally blasting off. this huge piece of kit from elon musk‘s spacex will be the world's most powerful operational rocket. while its maiden voyage will be unmanned it has been designed to eventually carry humans into space. the european and japanese space agencies have their sights set on mercury. covered in craters, towering cliffs and ancient volcanoes, until now the smallest

planet in our solar system has been little explored. but this spacecraft is set to change that and it will launch in the autumn. it will not arrive until 2025. scientists say the wait will be worth it. and in 2018 the kilogram is set for an overhaul. until now, the standard weight of a kilogram has been defined using a lump of metal sitting in a lump of metal sitting in a vault. the problem is every time it is handled a few atoms are rubbed off and it is getting lighter. now physicists plan to use quantum mechanics to provide a far more accurate measurement. for many of us, today is the start of our new year's resolutions and the perfect time to make ourselves fitter, wiser and more successful. but one mental health charity says the classic "new year, new you" message can increase

anxiety and unhappiness. earlier i spoke to mark rowland from the mental health foundation and rasheed ogunlaru author and life coach who gave their advice on setting goals for the year ahead. for many people, the process around new year ‘s resolutions are not working and what we are putting the case for what is they are too externally focused and not focused on what we really want and need, more calm, more peace, and a sense of well—being. so fundamentally we are saying rather than think about new years resolutions self critically, but what do i need to change and leaving the old self beheading, let's consider positively from a place of i'm enough —— leaving the old self behind. is that something you agree with? i do agree. the problem with lots of new years resolutions as we are not strategic or holistic enough and do not put in place the steps. i agree we need to focus on the inner stuff and feeling good about ourselves but

the problem is that there is too much pressure to do this and that underfour much pressure to do this and that under four people set resolutions that they feel they should do rather than what they want to do and i would recommend people set goals for themselves, their relationship and theirentire themselves, their relationship and their entire career. it is precisely because we are not happy we set these resolutions. it is quite hard to think of it in a positive way. it is interesting, what we really treasure you cannot measure. actually having a greater sense of fulfilment and contentment are things you cannot measure and because that we focus on things you can such as losing weight running faster. but this reflect the process of understanding what makes me take my partner tick and what can i do to manage stress and anxiety better is the start of really good and positive mental health and that is something we need to learn. it is the case according to some research done, the majority of

people fail to keep their resolutions, how would you advise people to go about trying to be happier? first of all, picking up on that, appreciate who you already are and give yourself credit for what is already in place. if you are setting goals make sure they are at your own, be strategic and plan, accept there will be some ups and downs and measure how you get on. and ask yourself are you self—motivated or are you better off getting somebody else to help you get the support you need, but take it easy on yourself and ensure you have the good life balance and it is not all about work. are you making new year's resolutions? we sat down last night and decided the theme from idea will be open this and when i have a closed mind i am more irritable and less calm so

thatis am more irritable and less calm so that is my thing for the year. for me it is about accepting being grateful for each year that —— each day that we have. susan powell has the weather. good evening. if you need something to clear the slate for the new year the weather will blow away any cobwebs. often a very windy and some heavy rain. here is a picture of the improving weather we saw this afternoon across essex, once the area of low pressure moved away and new year's been brought some gorgeous sunshine to scotland. these skies will be clear for many through tonight. the wind mac following lights and that allows it to turn rather chilly. frost for many areas however temperatures lifting toward the west and by the end of the night

the west and by the end of the night the weather front approaches. tuesday and many start off on a dry fitting, chilly in eastern scotland and the west the cloud moving in. rush hour looking rather wet and northern ireland. dry in northern england and the midlands, central and eastern england and wales mac and eastern england and wales mac and the south west to strengthening winds and the rain arriving. this weather system moving through at quite a pace. in one respect that is quite a pace. in one respect that is quite good because you start with heavy rain then it will improve by the afternoon but if you start of dry then it will be wetter by the middle of the day. some snow on the hills of northern england and mountains of scotland, windy across the board but sunshine for many areas by the close of the day. just areas by the close of the day. just a brief lull in the weather with that dry spell. here is tuesday night. this low pressure pushing across. widespread deals, rainjust

about everywhere and even as the low pressure head eastwards on wednesday leaving a legacy of strong wind behind it, severe deals for the time along the coastlines. these jammers behind are quite potent. hailstones, thunder and strong winds. then we are not done yet, it in the atlantic here is what is waiting for thursday and friday. firstly is deceptively starting quiet but more wet and windy weather waiting in the wings. a fifth day of unrest in iran — a police officer is shot dead

and several others have been wounded. shouting and whistling demonstrations over the rising cost of living have turned political — at least 12 protestors have been killed. searching the wreckage after one of britain's most successful businessmen, and his family, die in a seaplane crash in australia. the aftermath of a fire that swept through a multi—storey car park in liverpool — 1,400 vehicles destroyed. how china deals with our plastic waste — but what happens now that they say it's time for the uk to take care of its own rubbish? manchester united are back in second place in the premier league after a 2—0 victory against everton. good evening.

in iran, a police officer has been shot dead, and three others have been wounded, after a fifth day of anti—government protests. what began as a protest against the rising cost of living now seems to be taking on political overtones. a dozen protesters have been killed in the last 2a hours. the foreign secretary, borisjohnson, has called on the iranian government to allow meaningful debate on the issues raised by protestors. our correspondent rana rahimpour, from the bbc‘s persian service, has the latest. once again, thousands of people have taken to the streets. a poster of the supreme leader set alight and torn down before the crowds rush over the wall of the

town hall in this city. they are angry at unemployment, rising prices, and what many think is widespread corruption. it's the boldest challenge to the country's leadership in nearly a decade. the demonstrations began in the north—western city of mashhad, a key base for president rouhani's most outspoken critics. but it has quickly turned into a widespread antiestablishment movement, including the supreme leader. this is the biggest show of dissent in iran since the post—election rallies of 2009. they were large in size, but limited to urban areas of the country, like the capital, tehran. this time, the protests are more widespread, with towns and cities all over the country looking for social, political, and economic change. authorities are continuing to suspend social media platforms out of fear they will be used to organise more protests. the bbc has received reports of text messages, like this one, being sent to people urging them not

to take part. a handful of pro—government marchers are attempting to counter the wider demonstrations, but with limited information coming out of the country, it's difficult to gauge how many people are involved. in the last 2a hours, president rouhani has spoken out twice against the protests. downplaying their significance and instead... accusing iran's enemies of instigating the unrest. translation: our victory against the us and the zionist regime is unbearable for our enemies. our success in the region is intolerable for them. they are after revenge and are trying to provoke people. but his words have failed to calm the situation. in certain areas of the country, unemployment is as high as 60%, and reports of extreme corruption have iranians frustrated and hungry for change.

tonight, iranian state tv is reporting that a police officer has been shot dead. it is the first reported attack on a member of the security forces since the demonstrations began last week, a move that may escalate the confrontation between protesters and the state, and attention league lead to more bloodshed. rana rahimpour, bbc news. air accident investigators in australia say it may take months before they know why a seaplane carrying a prominent british businessman and his family crashed on new year's eve. richard cousins, who ran a multi—billion pound catering company, was killed along with his two sons, his fiancee, her daughter and the pilot. they were on holiday and returning to sydney after a family outing. phil mercer reports from sydney. the wreckage of the seaplane lies 13 metres below the surface of the hawkesbury river. one of the victims was the british businessman richard cousins, the chief executive of the world's

largest catering firm, compass, who was due to retire later this year. the company confirmed his death in a statement. mr cousins, who was 58, died alongside his fiancee emma bowden and her 11—year—old daughter, heather. also on board the seaplane that crashed intojerusalem bay — william cousins, who was 25, worked for open britain, a pro—eu group set up in the aftermath of the brexit vote. colleagues said they were shocked by news of his death. his brother, edward, who was 23, had recently graduated from the university of st andrews. losing both my godson and his sibling, and my brother—in—law as well, has left a huge hole. they had a lot of friends. they had... they were very, very popular lads. and that's because they've had a fantastic upbringing, from both my sister and richard. the pilot, gareth morgan, had done more than 10,000 flying hours,

9,000 of which were on seaplanes. the pilot had collected mr cousins and members of his family from an exclusive waterfront restaurant, and was heading back to rose bay on sydney harbour. shortly after take—off, the plane plummeted into the water. investigators say it quickly sank, and there were no survivors. this is people that have come over on holidays to visit australia. they were in one of the most beautiful parts of the world. and for this to happen to them at a place like that is nothing more than just tragic. it could take months to work out how and why a routine sightseeing trip could end in utter disaster. air crash investigators have begun their work. their task won't be easy. the wreckage of the seaplane has been submerged in more than 40ft of water. and although these idyllic bays and inlets are geographically close to sydney, the crash site is tucked

away and hard to get to. sydney seaplanes, which owns the aircraft, has suspended all its flights until further notice. phil mercer, bbc news, sydney. four young men have been stabbed to death in london in a 24—hour period either side of the new year celebrations. three men, aged 17,18 and 20, were killed yesterday. three men, aged 17, 18 and 20, were killed yesterday. a fourth victim, another 20—year—old, died after being stabbed in the early hours of this morning. police say the deaths are unrelated. ben ando reports. late morning, enfield, north london. the victim, aged 18. early evening, west ham, the victim, 20 years old. three hours later, tulse hill, south london, a teenager of 17. and then in the early hours of new year's day, a 20—year—old man killed in old street. all four, stabbed to death, but according to the police,

none of the murders are linked. tragically, there are four families who awoke this morning to the heartbreaking news that they've lost loved ones to the callous use of knives as lethal weapons. our detectives are working tirelessly today and going forward to bring those who've committed these murders to justice. the three murders before midnight take the total number of fatal stabbings in london for 2017 to 80. that compares with 60 in 2016. police say the reasons for the increase are complex, but it underlines the importance of stop—and—search. my mum needs me alive... in november, a campaign to convince teenagers not to carry knives was launched. london needs me alive... one campaigner who lost a son to knife crime says youngsters need more help to make the right choice. so, i don't carry a knife... they are living in total fear. they weren't born killers.

they didn'tjust become like that. it's a process. and now, what we've got to do is unravel that process, stage by stage by stage, to get to the core of the individual, which is the state of their heart and the state of their mindset. as work goes on at the scene of the first knife killing of 2018, the question is, will this worrying trend continue? ben ando, bbc news, south london. police investigating the death of a woman who was killed in a north london park over christmas have arrested a 31—year—old man on suspicion of murder. the body of iuliana tudos, who was 22 and of russian and greek origin, was discovered in finsbury park last wednesday. police say she died of a stab wound to the abdomen and a head injury. the leader of north korea, kim jong—un, has warned the united states that he has a nuclear button on his desk, ready for use, if his country feels threatened.

in a televised new year's day speech, he said that the whole of the us was within range, but he had warmer words for neighbouring south korea, saying he wanted to ease tensions. eye witnesses have been describing a huge fire which destroyed up to 1,400 vehicles in a multi—storey car park in liverpool. the blaze at king's dock, next to liverpool's echo arena, is said to have spread after one vehicle caught fire yesterday afternoon. firefighters worked through the night and many people were forced into temporary accommodation as nearby buildings were evacuated. danny savage has the story. it was shortly after dark yesterday evening when fire took hold on the multistorey car park on liverpool's famous waterfront. the fire service says a small fire in a land rover spread rapidly. this is a photo taken of it at the time. as the blaze spread, cars could be heard exploding. the car park is next to the liverpool arena,

where an international horse show was taking place. those attending helped get the horses to safety. ijust took it upon myself. isaid, right, ok, everyone, listen to me, we are going to bridle up the horses and we're going to get them out. i want you to all leave calmly now, use this exit or use the tunnel. it was soon a huge blaze. merseyside fire and rescue say it's one of the worst they've ever dealt with. this was a challenging incident. let's be under no illusions about that. the crews worked very hard indeed to prevent the spread of this fire. the fire burned for much of the night. all the car owners could do was watch and accept they would never see their vehicles again. i've got a vehicle in there, yeah, so i'm unsure at the moment what it's going to be. we can't get anywhere near it. are you holding out much hope for your car? looking at the flames, no.

chuckles this morning the blackened building was surrounded by fire engines. it's likely it will have to be demolished. in the remains of this multistorey car park are many hundreds of cars which have been totally destroyed. but we understand that right on the rooftop level are some cars which are almost untouched. and after the fire had been put out this morning, after many hours, some dogs, which had been left in those cars, were safely rescued and reunited with their owners. as the dogs were handed back to their owners, there was a hug of gratitude for the firefighters.