hello, this is bbc news, i'm kasia madera. our top stories: the us says all options to deal with the threat from north korea are on the table and calls for the un to back tough new sanctions. only the strongest sanctions will enable us to resolve this problem through diplomacy. we've kicked the can down the road long enough. there is no more road left. the caribbean braces for the arrival of hurricane irma. the category four storm's set to make landfall on tuesday night and may then threaten florida. animal magnetism — why scientists say these stranded sperm whales may have been victims of solar storms. and a key recruiting ground for so—called islamic state — we report from the russian republic of dagestan, source of more than 1,000 jihadists. a pr disaster for bell pottinger! the boss of the uk trade body that's expelled the public relations firm for the worst breach of ethics

in its history is here. round two in the battle of the taxi—hailing apps. uber has already thrown in the towel in china, but now it faces competition in london. south korea's navy has held major live—fire drills off the peninsula's east coast, in a show of force to north korea after its latest nuclear test. further exercises at sea, possibly involving us forces, are expected to

occui’ involving us forces, are expected to occur later in the week. despite our efforts over the past 2a yea rs, despite our efforts over the past 2a years, the north korean nuclear programme is years, the north korean nuclear programme is more years, the north korean nuclear programme is more dangerous than ever. war is not something the us wa nts. ever. war is not something the us wants. we do it not want it now but our country ‘s patience is not unlimited. we will defend our country and our territory. transaction mac it is a vicious circle. the situation must be resolved peacefully. china will never allow chaos and wall in the eyre peninsula. let's get the latest from seoul now and our correspondent robin brant. a frustrating lack of agreement on what to do? certainly the beginning of this process and it can take weeks and months to agree. the signs

at the beginning are not good. clearly distanced between china and the united states and in the middle of that is south korea, the country that shares a border with north korea and would be at the forefront ofa korea and would be at the forefront of a military confrontation. this morning, from the navy, we have had a show of strength. the hayet state of alert continues to be in the country. this morning that carried out alive fire drill described in a statement from the government as a massive exercise. army launching a missile which landed in the east sea, designed to replicate an attack by the north korean nuclear sites. designed to show the conventional capabilities that south korea has both to defend and possibly to attack the north. further exercises later in the week with us forces.

the man in charge of the us pacific fleet is in seoul today. president trump and this country's president moonjae—in,, spoke trump and this country's president moon jae—in,, spoke on trump and this country's president moonjae—in,, spoke on the phone. it took 36 hours to get on to the phone conversation. the right signs of division which is troubling but on the phone call, president trump agreed in principle to sell the south koreans more weapons to defend themselves and to make them more powerful. thank you for bringing us up powerful. thank you for bringing us up to date. and of course, you'll find plenty more about the north korea nuclear crisis on our website. there's analysis and the latest updates from our correspondents in the region — just go to bbc.com/news you can also download the bbc news app. let's take a look at some of the other stories making the news amnesty international says nearly 400 civilians in nigeria and cameroon have been killed since april in a surge in attacks by the islamist group, boko haram.

the human rights group said that was double the number of deaths in the previous five months. amnesty believes the figure was boosted by boko haram's increasing use of suicide bombers in crowded areas, often against young women and girls. it's being reported in the us that president trump will end the program known as deferred action for childhood arrivals, which shields some immigrants from deportation if they came to the us illegally as children. the 0bama—era policy currently protects around 800,000 young men and women often known as dreamers. poland's foreign minister says his government wants to hold serious talks with berlin about claiming reparations for the destruction caused by the germans during the second world war. witold waszczykowski said the nazi invasion of poland in 1939 still cast a shadow over the two countries' relations. the polish government estimates it's

entitled to almost $1 trillion in compensation. the australian high court is hearing a legal challenge to a proposed postal vote on the legalisation of same sex marriage. supporters of a change in law fear the vote will encourage intolerance and homophobia. the voluntary postal vote is scheduled to be held next week. if the majority of australians vote for change, the government would then hold a free vote in parliament. a state of emergency has been declared in florida in the face of hurricane irma. it is now a category four storm, bearing down on the eastern caribbean and likely to reach land by tuesday night. it could hit several caribbean islands, including the leewards, haiti and puerto rico, before moving towards florida. virginia langeberg has more. as hurricane irma builds strength out at sea, here on the shores of

the dominican republic, small waves roll in under blue skies. but this could well be the calm before the storm. translation: the government is ready to face whatever situation may present itself. from this moment on, we're on a constant monitoring situation. irma has been upgraded to a powerful, category 4 storm, and likely to make landfall by the early hours of wednesday, prompting hurricane advisories to be issued for several caribbean islands. a state of emergency has also been declared in florida, which could be in irma's path. this is a severe and strengthening storm. up to half a metre's worth of rain is possible from it, but the wind strength could be the major issue. sustained winds, that's the average wind speed, of at least 220 km/h. gusts, of course, could be much higher than that. damage and destruction is certainly possible. in santo domingo, the president of the dominican republic has met with the emergency commission,

and stands ready to issue evacuations. translation: all the authorities here today will do everything possible so that nobody is directly affected. people should know that when an evacuation order is given, especially when alert levels are sent, the first thing to do to manage risk is self—evacuation. irma is forecast to strengthen over the next 48 hours, while residents bracew for the intensifying storm, and hope that she spares them some grace. sally is here with all the business news. you are focusing on a pr disaster? absolutely. a complete meltdown for a well—established pr company, we are talking about bell pottinger. the public relations firm bell pottinger has been expelled

from the pr trade body in the uk. the public relations and communications association says the company was unethical and unprofessional and brought the industry into disrepute. in an unprecedented move its expelled bell pottinger in an unprecedented move it's expelled bell pottinger for 5 years. this follows the companies media campaign for the wealthy gupta family of south africa that was heavily criticised for stirring up racial tensions in the country. the gupta's have been accused of benefiting financially from close links to south africa's president zuma and hired bell pottinger to change its image. the trade body says the secret media campaign is the worst breach of ethics in its history. we have the boss of that organisation on world business report and you can hear their reason why they expel the company.

the ride—hailing company taxify — which is part—owned by the chinese firm didi chuxing — is set to launch in the uk today. it will offer an alternative to uber which is the dominant ride—sharing app in britain. the two companies have already faced off in china where didi is the market leader. infact uber took the decision to withdraw from the chinese market after two years and more than billion dollars worth of losses. is uber under threat in the uk? i know a lot of you use it all the time. i will be back in around 20 minutes. researchers believe nearly 30 sperm whales which became stranded on european beaches early last year

may have been the victims of large solar storms. scientists were puzzled by the loss of the mammals because they were healthy, mainly young and well—fed. but, other factors such as global warming may have been as important. our environment correspondent, matt mcgrath has more details. crowds gathered in february 2016 to see this ocean giant washed up on a popular beach. 29 wales were found stranded in the first two months of last year. they were young, healthy and generally diseased three and scientists were puzzled. the aurora are the visible evidence of large solar storms. this can cause species that rely on the field to lose their

way. after storms in december 2015, scientists said the confused creatures beach themselves trying to find a way out. other researchers say it is impossible to prove. a french court is expected to deliver verdicts in the case of topless photographs of the duchess of cambridge. they were taken while in provence five years ago. it was five yea rs provence five years ago. it was five years ago that the secret photographs were taken. the topless images were published in a french celebrity magazine and quickly withdrawn after the couple obtained an injunction. separately, criminal

charges were brought against the magazine and classmate, to editorial staff and two photographers were charged with invasion of previous sea. with the 20th anniversaryjust past on the death of princess diana, the comparisons on the papparazzi chasing her. today, after they announce the good news of their third expected baby, this may bring back memories they much rather forget but by pushing for record damages, they made their point. the rightful priddis is not something the uk royals would give up without a fight. the uk royals would give up without afight. —— the uk royals would give up without a fight. —— the right for privacy. stay with us on bbc news — still to come... battling depression and loneliness with ‘blue health‘ — a new high—tec interactive therapy. she received the nobel peace prize

for her work with the poor and dying in india's slums. the head of the catholic church said mother teresa was a wonderful example of how to help people in need. we have to identify the bodies, then arrange the coffins and take them back home. parents are waiting and wives are waiting. hostages appeared, some carried, some running, trying to escape the nightmare behind them. britain lost a princess today, described by all to whom she reached out as irreplaceable. an early—morning car crash in a paris underpass ended a life with more than its share of pain and courage, warmth and compassion. this is bbc news.

the latest headlines: the us has accused north korea of begging for war. in response to pyongyang's latest nuclear test, florida has declared a state of emergency. vladimir putin claims that 4,000 russian citizens are fighting in syria on the side of so—called islamic state. many are from the russian republic of dagestan in the north caucasus. it is women and children as well is meant. how correspondence able to the mountains of the gstaad to find out why people are leaving and what that means for those left behind. they used to believe that this is

where the gods and demons did battle. in davistown today, that battlecry is jihad. battle. in davistown today, that battlecry isjihad. for people leaving these mountains for a holy war. this man says his wife was drove to radical islam. one day without telling him, he took their daughters and left for syria to join so—called islamic state. desperate to rescue his children, he smuggled himself into isis controlled territory in syria. he found his kids. to escape from the caliphate, they headed to the turkish border. translation: i picked up my little girland translation: i picked up my little girl and told my other daughter to run. my youngest started crying. i trip on field three times. the border guards werejust trip on field three times. the border guards were just 50 metres away and they began shooting. we dived into an irrigation ditch and

hid there are with bullets flying overhead. then we escaped through some long grass and i saw the moon and the cornfields. it was paradise. soon they were back home. the nightmare was over. translation: my youngest daughter asked me later, how come everyone else has a mother and i don't? but i know the girls are still in touch with their mother on social media. i'm not going to stop them. of course they miss her. is not only from this house, this village that people have moved to syria. dagestan has become a key ground for islamic state. they have gone to fight against syria. that means that relative to its population, this pa rt relative to its population, this part of russia has produced ten times morejihadists part of russia has produced ten times more jihadists than part of russia has produced ten times morejihadists than belgium. but why? what has been drawing them

to syria? translation: business as he was brainwashed. he abandoned his pregnant wife in dagestan. he has now deserted isis. translation: i failed. my now deserted isis. translation: ifailed. my sole now deserted isis. translation: i failed. my sole duty was to wait war. i realise now i had made a mistake. it wasn't a holy war at all. it was just muslims fighting muslims. some claim the authorities have made the situation worse. in the town, i am shown the mosque of a fundamentalist branch of islam. police have shut it down. this man used up radio. he admits that up to six members of the congregation have left for syria. but closing the mosque, he says, is no solution. translation: when the young people are here with us, we can keep an eye

on them. but shut the mosque and the young people leave. who knows where they go. and what they are doing. islam is part of the fabric of life in these mountains. but the kind of islam the authorities want people here to embrace is that islam that preaches tolerance and that supports the government so that dagestan people will not feel the need to go fight ina people will not feel the need to go fight in a holy war. in tennis, both men's and women's world number ones are still going strong at the us open. rafael nadal made it through to the quarter—finals for the seventh time on monday. he defeated ukrainian alexandr dolgopolov. and it was fast too — just1 hour and 41 minutes from first serve to match point. the spaniard won 6—2, 6—4, 6—1. the 15—time grand slam champion hasn't made the us open last eight since capturing the 2013 title.

he returned to the top world ranking last month, for the first time since 2011. he could meet roger federer in the semifinals. really, i felt more really, ifelt more pumped really, i felt more pumped the really, ifelt more pumped the ball from the beginning. —— more co mforta ble. from the beginning. —— more comfortable. the most important thing is the control of the time, of the point, and not many balls surprise me and i didn't hit a lot of balls earlier than what i thought or later than what i thought. something that happened in the first couple of days. and it is very good news because when that happened, of course, the previous round had been a step forward for me and today i won, so i'm playing a little bit it every day and now i have a tough opponent in this round of money to continue playing. top women's seed and world number

one karolina pliskova needed just 46 minutes to sweep past usa's jennifer brady 6—1, 6—love. it's pliskova's third slam quarterfinal this year. it was not the best today. she was kind of nervous and with the shadow, i think shejust kind of nervous and with the shadow, i think she just didn't feel well. that is nothing on my game today. i was feeling great. justin thomas won his fifth title of the year on golf‘s pga tour, with victory at tpc boston. jordan spieth was a runner—up for the second straight week as his accuracy slipped. his approach went wide here on the 12th. australian marc lieshman finished third after leading at one stage during his round. he did his best to get out of trouble here on 18. but the cameraman needs credit for his fancy footwork. thomas carded 66 to

finish at 17—under par. but his good friend speet takes the lead in the fedexcup standings, with two tournaments left in the playoff series. whether it's the soothing sound of the waves or the sand between your toes, a trip to the seaside can lift the spirits. now researchers are investigating whether so—called "blue health" could be used to help people living with depression and loneliness — even if they can't get to the coast. our correspondent graham satchell went to cornwall in south—west england to find out more. 0k, ok, happy? oroff ok, happy? or off the coast on a boat owned. on—boa rd, ok, happy? or off the coast on a boat owned. on—board, a skipper, a therapist and to people who are living with anxiety and depression. it is very special meeting on the

water, it is such a calming place, you can leave whatever troubles you behind. and you can escape. close your eyes. there are group sessions on board and everyone works as part of the crew. the charity says the see yourself as a therapeutic quality. there is something going on, it is quite hard to define. but it is something to do with space, something to do with challenge, power. ian started to feel depressed and withdrawn after retiring from the fire service. there is something eternal about the sea, about water. i'm so lucky to be living in cornwall, to have a pension and to be able to do this. so what about people who don't live near the coast? a team of researchers from the university of exeter, a 360 virtual reality camera and everyone. they are trying to capture the power of the coast for people who can't

get there themselves. there's quite a lot of evidence now to suggest that accessing and having exposure to natural spaces can really beneficial psychological well—being in terms of stress reduction, in terms of combating the ration my practically trying to ring that therapeutic blue space in for people who cannot access it themselves. addiction in our project, people living in care homes who perhaps cannot get outside the early. the project is part of a much larger european research into so—called blue health. will it work mr mark bring it over your glasses. pop the phones down. it is on my nose. nicky is trying out her videos on a group of volunteers. that is amazing. it is beautiful. some of the pictures are calm and relaxing. one could definitely fall asleep. others more interactive, stimulating. the turtle is coming behind the! well, i

thought it was a really interesting experience. it's not something i've done before. it feels like you're there. where did you come from? anything i think and it did with the seal river, water, it certainly takes away some of the day—to—day drudgery of life. what we wanted to do was test whether these environments where really relaxing and stimulating, and today we found that the way people reacted to them was the way we hope that they would am so we was the way we hope that they would am so we would definitely take those videos forward now into our care. nicky will take her headsets into ca re nicky will take her headsets into care homes next year. to bring blue health to those who can't access it themselves. would you find that relaxing? it has been a human start to the

week, but the story will change as head towards the weekend. for a night ina head towards the weekend. for a night in a moment. opie managed to enjoy some this afternoon. look at the west midlands. 2a degrees this afternoon. it was quite a lot of cloud generally through the country and thick enough for some rain across parts of scotland. that is easyin across parts of scotland. that is easy in the last few hours but will return through the night tonight across northern ireland, the scottish waters and north—west england and wales, and to the south it will be a pretty humid night. loads of 15 to 17 degrees. fresh air trying to get in behind the front. it will take its time in doing so. mrapps it will take its time in doing so. mr apps with it will take its time in doing so. mrapps witha it will take its time in doing so. mr apps with a little bit of cloud breaking up to some brightness in the south—east. rain fairly ragged affair moving its way eastwards. behind, some decent spells of sunshine. not a behind, some decent spells of sunshine. nota bad behind, some decent spells of sunshine. not a bad afternoon for scotla nd sunshine. not a bad afternoon for scotland and northern ireland. a few

isolated showers. 13 to 17 degrees. come —— a company with some decent spells of sunshine. a weak affair by the middle of the afternoon. the odd spittle spot of rain. it would get some sunshine, we mightjust see temperatures in the low 20s. generally, we are looking at around mid to high teens. in those fronts will sweep their way steadily eastwards. that will really introduce the fresh air. plenty of isobars on the chart, which basically means it will turn pretty breezy. it will be a fresh start first thing wednesday morning. good deal of dry, quiet weather, but look at the difference in the temperatures. as we move through thursday, we keep dry weather across england and wales, but signs of coming a little wetter and windy start to push into the north—west and that area of low pressure will sweep its way south and east through thursday night into friday. it will

bring a spell of wet and windy weather for pretty much all of us at some point. heavy rain to clear through england and wales and squalling showers developing in the far north and west. highs of 13 to 18 degrees. this theme will continue into the weekend. windier times, blustery with showers and it will feel almost autumnal. this is bbc world news, the headlines: the us has accused north korea of begging for war. in response to pyongyang's latest nuclear test, the american ambassador to the un urged the security council to adopt the strongest possible measures in response. she's set to circulate the draft of a new sanctions resolution later. a state of emergency has been declared in florida in the face of hurricane irma — now a category four storm and bearing down on the eastern caribbean. it's likely to make landfall on tuesday night. vladimir putin claims that 4,000 russian citizens are fighting in syria on the side of so—called islamic state. many are from the russian republic of dagestan in the north caucasus. researchers believe nearly 30 sperm

whales which became stranded on european beaches early last year may have been the victims of large solar storms.