this is bbc news. i'm lukwesa burak. the headlines at apm: a fresh warning for north korea from the us president — donald trump says it will "regret it fast" if it continues to threaten america or its allies. they will be very safe. if anything happens to guam, there's going to be big, big trouble in north korea. police have arrested a 27—year—old man on suspicion of a double murder in golders green. police, investigating the death of 83—year—old peter wrighton, who was stabbed while walking his dog, have arrested a man in his 20s. at least two people shot dead in kenya during overnight protests against the re—election of the country's president, uhuru kenyatta. and london prepares to say goodbye to two legends at the world athletics championships, as mo farah and usain bolt prepare to take to the track for the final time this evening. and coming up — i'll bejoined

by a panel of foreign correspondents to discuss the tension between the us and north korea and the kenyan elections in dateline london. good afternoon and welcome to bbc news. the chinese president, xijinping, has urged the united states and north korea to show restraint, amid the growing crisis over north korea's nuclear programme. during a telephone conversation with president trump, china's leader urged both parties to avoid words and actions that could increase tensions. earlier today, mr trump called the governor of guam to show his support for the us pacific territory, which north korea has threatened to fire missiles at.

from seoul, robin brant sent this report. first, he threatened fire and fury in north korea, then last night president trump said us forces are locked and loaded. now there's more short—phrase diplomacy as the tension goes even higher. anything happens to guam, there's going to be big, big trouble in north korea. in just a matter of days, the country on the brink of becoming the world's newest nuclear power has threatened to land missiles just a few dozen miles from the us territory in the pacific. good morning, mr president. good morning, good morning, it's great to speak to you... in a call with the island's governor, mr trump had this to say about the regime in pyongyang. this is between you and i, but you don't talk like they talk, you can't do that, you can't do that with people like us. yeah. guam is home to us military bases, a fleet of bombers, and tens of thousands of people — americans who are now being told what to do in the event

of a nuclear explosion. meanwhile, diplomacy is going on. in another presidential call, donald trump spoke to xi jinping, china's president. he's key to any future peace deal. they agreed north korea needs to stop its provocative actions. but mr trump was also told that all relevant parties, him included, should stop exacerbating the situation. in the south korean capital, they've lived with the threat from their northern neighbours for decades. there are reports today shoppers are buying more ready meals and investors buying more gold — signs that people may be stepping up their preparedness. in just over a week's time, they'll have a civil—defence drill in this city. the sirens will go off, people will be guided from above ground to metro stations or bomb shelters to take cover from any possible aerial attack. it happens every year. last year, just a handful of districts in seoul took part. apparently, this year, everyone‘s taking part. across the sea injapan,

another possible target, the military is also preparing missiles, but these are for defence. these transporters have been moved to places where they could intercept any north korean missiles flying over. robin brant, bbc news, seoul in south korea. earlier, i spoke to dr colin alexander, an expert in east asian political communications, based at nottingham trent university, and asked him for his analysis on china stepping in as a mediator. yes, china tends to step in to these scenarios. china has reasonable relations with the united states these days and also is north korea's main, some would say only, ally. it's the obvious choice. as a superpower nation it holds a lot of clout as well. but why does china not appear to take a more aggressive, diplomatic stance or action against north korea? well, i would suggest that china's saying that both sides need

to use diplomacy here. that they need to, that both sides have an argument and that both sides are able to approach the diplomatic table and discuss this. i think that adding further aggression tot equation is unwise. and china's approach to this, i think, is pretty worthwhile. so china are stepping in. you've got angela merkel saying, "i consider an escalation of rhetoric the wrong answer." how exactly do you solve a problem like north korea? what is the problem with north korea 7 it depends really - carry on, sorry. i mean, north korea has, like any other state in the world, has a right to defend itself from aggression, no matter what that aggression may be.

so you can say that north korea is a problem, but then, you can also say that the united states and its actions are also a problem. so what do you make of north korea testing these intercontinental missiles and very openly targeting us borders and her allies? is that 0k in your opinion? well, it's only suggested the issue of guam and it has hinted in the past at alaska. if you look at what is said, they said they were firing into the sea. they're not specifically saying they're going to endanger life. how do you think this is going to pan out? good question. i think that like the other stand—offs that we've had, this will dissipate, that, and you know, i go back to the original point that you've made, that this is reallyjust rhetoric.

it's chest beating from the two, certainly from the two presidents. i think that eventually it will be mediated and it will play out. i don't think that we're remotely close to any sort of nuclear conflict. a man has been arrested on suspicion of a double murder, after a mother and daughter were found stabbed to death in their home. the women, aged 66 and 33, were pronounced dead at a property in golders green, in north london, last night. a 27—year—old man is currently in police custody. detectives, investigating the death of an 83—year—old dog walker stabbed to death in woodlands in norfolk, have made an arrest. the body of peter wrighton was found three miles south of east harling in norfolk. he had been repeatedly stabbed in his neck and head, post—mortem examination tests showed. norfolk police has arrested a local man, in his 20s, on suspicion of murder,

and he remains in custody while inquiries continue. new measures to tackle the dangerous use of laser pens will be considered by the government, after concerns about their threat to air safety. the lasers, which can temporarily blind people, have been used to target aircraft and pilots, as our business correspondent, jonty bloom, reports. laser pens or pointers are designed to be used to highlight something of interest, but they can be dangerous — and dazzle or blind people if shone directly at their eyes. last year alone, there were 1,258 laser attacks on aircraft, even though it's already an offence with a maximum fine of £2,500. helicopters, which fly lower than many aircraft and typically have only one pilot, are thought to be especially vulnerable to laser pens. the government is now going to consult on new measures to restrict the dangerous use of laser pens and boost safety, such as introducing a licensing scheme for retailers,

limits on the advertising of laser pens, and potential restrictions on their ownership, as well as a possible awareness—raising campaign to educate people about the dangers of laser pens. interested parties, including businesses, retailers and consumers, now have eight weeks to submit their evidence and proposals. jonty bloom, bbc news. the union unite has warned that strike action by refuse workers in birmingham, which has left waste piling up in the streets, could continue until christmas. the union has said it will ballot its members to renew its mandate for industrial action, after the current round of strikes end on september 21. itjust keeps mounting up. six weeks of strike action by refuse workers has left some streets in birmingham full of bin bags and vulnerable to vermin. now the union behind the action, unite, says it will ballot its members on continuing that action all the way until christmas.

right, it's been about four weeks now, we've had bin bags literally lying everywhere, we've got recyctable waste in the houses building up everywhere. it's terrible, we just need it gone. as soon as they can, just take it away and get rid of it. the row with birmingham city council over changes to the waste service has deepened, with the council accusing unite of holding the city to ransom. it says it must modernise, saving millions of pounds in the process, and also that no—one will lose jobs. workers say they're facing the prospect of less money if they're forced into different roles. the council is proposing to take safety—critical responsibilities off bin loaders at the back of a bin wagon, endangering my members and the public. but in doing so, and there will be a cost to my members' income of between £3,500 to £5,000 a person. they are already on low incomes, and they simply cannot afford it. it's stalemate, but the patience of residents dealing with the consequences is running out.

tensions remain high in kenya after the incumbent, uhuru kenyatta, was declared the winner of the disputed presidential election. there has been violence in areas that support the opposition candidate raila 0ding, with reports at least two people were killed in overnight protests emmanuel igunza is in the western city of kisumu — a stronghold of the opposition leader. thnchts has been a battleground here. behind me the road still remains barricaded. there is a bonfire still here. there are hundreds of young people who are on the other side of the road as police are here. 0vernight we did see them engaging police in running battles. the police have been using tear gas and water cannon to disperse them. 0ver and water cannon to disperse them. over the last few hours, we've been hearing about the number of

casualties experienced during that night of battle between the police and rot testers. so far we have a report of one dead. we are going to establish the circumstances under which that person, aged 21, he has died. the other claims of other deaths, we have no information on them. we've had reports that police have been using live bullets during crowd control, is that correct? no, crowd control, is that correct? no, crowd control, is that correct? no, crowd control normally, even the case flow, crowd control normally, even the case now, they are using tear gas and blanks. these are not live ammunition. no live ammunition has been used. the live ammunition is used as a last resort. i don't think we have reached that last resort. for now there is an uneasy calm here. police have managed to take over some of the places that had been barricaded by the protesters. in other parts of the city, businesses have remained closed as

they have been over the past three days. businessmen have been talking about the losses they have made. some of the roads coming out of the city into the capital and other parts of the country remain closed and police have been trying to remove those barricades. it remains really tense here. more than 60 children, many of them newborn babies, have died in a hospital in northern india over the past six days. the head of the facility in the state of uttar pradesh has been suspended and a government inquiry is under way. 0ur correspondent sanjoy majumder is in delhi. bring us up to date with this. do we know the cause of these deaths to begin with? well most of the deaths occurred between thursday and friday, overnight into friday. there's been a suggestion that one of the reasons is because oxygen

supplies ran low, apparently because the hospital hadn't paid or cleared the hospital hadn't paid or cleared the bills of the private supplier. now this has been denied by the authorities, but the fact is that from the reports we've heard from the ground, certainly on thursday night it appeared that the supplies of oxyg e n night it appeared that the supplies of oxygen were dangerously low. many of oxygen were dangerously low. many of these children or babies, in fa ct, of these children or babies, in fact, were in the neonatalfacility. some of them were seriously ill. there have been reports that both the doctors as well as the families we re the doctors as well as the families were handed out manual breathing bags in an attempt to try and revive some of these babies, who u nfortu nately some of these babies, who unfortunately didn't survive. what the authorities maintain is that many of these children were very, very ill and no—one died because of a lack of oxygen, but an investigation‘s on to see if there's been any negligence. this has turned into something of a political hot potato, because there is discussion of this ongoing problem of

encephalitis. where does this fit into the issue? well this is in one of india's poorest states, uttar pradesh. it has for decades now suffered with this problem with encephalitis. it's a disease that brea ks encephalitis. it's a disease that breaks out in the monsoon, the season breaks out in the monsoon, the season we're currently in. children tend to suffer the most. the reason it's turned into a hot potato is quite apart from the fact that the medicalfacilities in quite apart from the fact that the medical facilities in that city still appear to be very, very poor, this is the constituency of a very influential politician. he's the state chief minister. he's a leading member of the hindu nationalist party, the party of the prime minister. we understand the prime minister is personally monitoring the situation. many people are questioning why the situation is so bad ina questioning why the situation is so bad in a constituency that belongs toa bad in a constituency that belongs to a very, very influential and powerful politician in the 21st

century. very quickly, many people listening to this will be surprised at the brain swelling that you're telling us about, is there no vaccine available, because this is a long running problem across northern india during the monsoon. are there no vaccine india during the monsoon. are there no vaccine programmes india during the monsoon. are there no vaccine programmes in place? no. it's not something you can a p pa re ntly it's not something you can apparently prevent very effectively. you can take medication for it. but basically, the simple preventive method is basic hygiene. most of it is borne by wind and mosquitoes. this is a city which is quite dirty. there's contaminated water. that's the reason why it occurs during the monsoon, because that's the time of heavy rain. if you have flooded areas with stagnant water it breeds mosquitoes, which in turn contap negotiates —— contaminates, affects people in contact with that. you

need basic hygiene and make sure surrounding areas are clean. that's why there's anger with the government because it doesn't seem such a difficult thing to do. thank you very much. the headlines on bbc news: president trump has warned north korea that it would "regret it fast" if it continued to threaten america or its allies. police have arrested a 27—year—old man on suspicion of a double murder in golders green. police, investigating the death of an 83—year—old man, stabbed whilst walking his dog, have arrested a man in his 20s. in sport, burnley are leading chelsea 3—0 in the opening game of the new premier league season. earlier in the lunch time kickoff, watford held liverpool to a dramatic late 3—3 draw. usain bolt anchors

jamaica to a place in the final of the men's 4 x 100m relay at the world championships, his last chance a gold medal before he retires. britain's women's 4 x one team also qualified for the final, fin irg second in their —— finishing second in their heats. all four british relay teams are through to the finals. that's the sport. two legends of athletics will run their last major competitive track races at the world championships in london tonight. mo farah will be hoping to win his second gold of the games when he runs in the 5,000 metres. usain bolt will retire after taking part in the relay with the jamaican team. let's get more now from our sports correspondent 0lly foster, who's at the london stadium. a big night for the two men, who's under more pressure do you think? 0h, under more pressure do you think? oh, that is a really tricky one.

well, let's break it down, the fa cts : well, let's break it down, the facts: there's 29 gold medals between them. astonishing. they have dominated their respective sports. usain bolt undeniably the greatest sprinter that athletics has ever seen, all his treble trebles. then sirmo farah, seen, all his treble trebles. then sir mo farah, knighted for his services to athletics, going for a third world championship double in the 5,000 and 10,000 metres. he has two doubles at olympic games as well. going for an 11th global gold medal. pressure? well he's thrived under it. you look what he did at the london 2012 games in this very stadium. he said that was the most incredible night of his life, when he completed the first 0lympic double in 2012. he goes in the 5,000 metres tonight, a long time now, eight days ago, britain's only medal at these championships. he said it was a brutal 10,000 metres race, the

toughest he's ever had to endure, the last 10,000 metres race before he retires from the track and turns his attention to marathon running. it's going to be tough that 5,000 metres. so yes, he will be under considerable pressure. but then you have usain bolt, who many people feel has gone on one major championships too long. because it was incredible what he did in rio, another treble of 100, 200 and four x another treble of 100, 200 and four x100. another treble of 100, 200 and four x 100. the rest of the world is catching up with usain bolt, we saw that in the 100 metres final when justin gatlin rolled back the years, co ntroversially justin gatlin rolled back the years, controversially and christian coleman, the young hope of american sprinting finishing silver. that wasn't part of the script, according to lord coe, with usain bolt getting bronze in his final individual race. but he anchored the 4 x 100 relay tea m but he anchored the 4 x 100 relay team this morning to make it through to his final track race, which is that relay final, last on the track. yes, there's pressure again. but i

think even more pressure because of who else is on the track. the jamaicans have dominated this, but the americans have caught up. they looked very, very strong as well. to get back to your initial point, i think it will be wonderful to see mo farah and usain bolt go out with golds and probably embrace again as we saw in 2012, at the pinnacle of their sport and really figure heads for their sport at two different ends of the spectrum, the distance runner and the sprinter. it's going to be tough for both of them, probably tougher for usain bolt to go out on the highest of highs. very quickly, what time do people need to tune infor quickly, what time do people need to tune in for these races? it's across the bbc, of course, 8. 20pm for sir mo farah's final global gold, we hope, his tilt at a global gold. at 9. 50pm, the last event on the track, the relay. great britain have all their men's and women's team

into the relay finals. if they get the baton round, the british men, they've got a chance. we'll be watching. thanks. an anti—islam campaigner has been approved as a candidate in the election for a new ukip leader. anne marie waters is the founder of the campaign group sharia watch which has previously called islam "evil". her candidacy has divided the party. some prominent figures in the party say if she wins, they'll quit. a new leader will be announced in september. i'm joined from our studio in hull by mike hookem, who has resigned as deputy whip in the european parliament over support within the party for ms waters. so, you're obviously not happy by this latest development within the party. no, i'm not. itook this decision earlier this week and e—mailed the interim leader to say i will no longer carry out the duties

of deputy whip. stuart agnew, who is the whip, he's vokally supporting anne mamarie waters and signed on her nomination papers and i can't work alongside stuart as long as he's supporting this woman. i believe she shouldn't be in the party. i believe she shouldn't be standing as a candidate. back in june, she was actually prevented from standing as a candidate in the elections. she didn't apparently meet the members' — being of good standing rule — what's changed this time around? nothing. she couldn't stand for a westminster seat because she wasn't a member of good standing. she couldn't stand as a police and crime commissioner because she wasn't a member of good standing. now suddenly she's standing. now suddenly she's standing for the top job. it doesn't make sense. she shouldn't be on the list. she shouldn't be in the party. what do you think‘s going to be the fallout if she doeses, let's say she does win? if she wins, myself as a

ukip mepi does win? if she wins, myself as a ukip mep i was located in 2014 as a ukip mep i was located in 2014 as a ukip mep, not me that was elected, people voted for the party. so i will carry on as a ukip mep, see my term out until 2019. i will carry on myjob as fisheries sportsman. i will carry on doing that and making sure that we get the exit from brussels that we expect. but i will not support her if she does and god forbid she does, if she becomes the leader, i'll have to be vocal on that and say, no, i don't support her. what are the odds of her getting the leadership?” her. what are the odds of her getting the leadership? i haven't looked at it. hopefully, very slim. my looked at it. hopefully, very slim. my problem is she should not be on the list. 0k, we're going to leave it there for now. thank you very much. hundreds of white supremacists have clashed with anti—fascist demonstrators in the american city of charlottesville. the violence occurred following a torch—lit rally, to protest a decision to remove a statue of the confederate general robert e lee.

in february, charlottesville city council in virginia voted to remove statues that marked confederate leaders from the american civil war. a small village in the cotswolds has been taking part in a landmark dna study to trace their family histories — with some surprising results. more than 100 villagers from bledington were tested as part of the genetics experiment, asjeremy stern reports. everyone seems to know each other in bledington, but it turns out that people in this tiny cotswolds village are even more close—knit than they thought. brenda found out herfriend graham is also her fourth cousin. definitely a surprise, yes. i mean, i had no idea. all of them were surprises because we have only been here 12 years. and they said i was the most related person in the village. the link was made through

dna taken by a company which maps family histories. saliva samples were provided by 120 residents. that is about one quarter of the village's population. bledington looks like the quintessential english village. we were keen to see what diversity we could find within bledington, just as an example of what you can find all over britain. we explored a few villages like bledington, nearby and around the country, and once we started talking to the people within the village and met with the parish council, they were so excited about the project that for us, it was the obvious choice. yet the results were anything but obvious. it turns out that as a whole, the residents in this most english of villages are less than 50% english. very interesting, because it tells you the percentage of britishness, how much of you is from europe or ireland. we are not completely british. the links stretch across the globe,

from the cotswolds to the caucasus, the middle east back to middle england. stargazers will be hoping to get a great view of the perseid meteor shower tonight. astronomers say hundreds of meteors will streak across the sky in a display that may be visible around the world. the display should peak at around 11pm. clear skies permitting, it will be seen in most parts of the uk. it all depends on the weather. the man with that is darren bett. hello. still got a few showers around as we head into the evening. especially the north and east of scotland, north—east england down to lincolnshire too. one or two sharp ones for a while. they will fade

away. for most overnight it's dry and clear. the wind is light as well. a good night to see the meteor shower. wrap up well. temperatures fall away very quickly in the countryside, across the north in particular, it will be chilly overnight. not much cloud into sunday morning. a nice, bright start for most of us. a few showers from the word go, perhaps in western scotland, developing more widely in scotland, developing more widely in scotland, mainly north of the central belt. the odd shower with more cloud across wales and the south—west, northern ireland, northern and eastern england likely to be drier and sunnier than today. drier across northern england. temperatures on a par with today. not far off the average for this time of the year. looking ahead to next week, nothing is settled. sunshine around at times but turning wetter for monday. then again probably later on wednesday, into thursday and maybe even into friday. this is bbc news. the headlines: president trump has issued a new warning to north korea, saying pyongyang will "regret it

fast" if it targets the us island of guam or any of america's allies. police have made an arrest after two women, believed to be a mother and daughter were, found with stab wounds in the golders green area of north london. detectives investigating the murder of an elderly dog—walker near east harling in norfolk have arrested a man in his twenties. now on bbc news, it's dateline london, with shaun ley.