this is bbc news. the headlines at 11am: 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 it's allies. they will be very safe. if anything happens to guam, there will be big, big trouble in north korea. a government crackdown on laser pens — new restrictions could be on the way stop pens being shone at planes and helicopters. ukip has approved anne marie waters, an anti—islam campaigner who describes the religion as evil, as a candidate for the party's leadership election, one of 11. at least two people have been shot dead in overnight protests following the disputed election in kenya. president the disputed election in kenya. uhuru kenyatta wa: re—elected president uhuru kenyatta was re—elected in kenya. and london prepares to say goodbye to two legends at the world athletics championships. as mo farah and usain bolt prepare to run their final races on the track 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 election in dateline london at 11:30am. president trump has issued another warning to north korea, saying the country will "regret it fast" if it continues to make threats against america and its allies. the president also called for tougher sanctions against pyongyang but he said he would love a peaceful resolution. the chinese leader xi jinping has spoken to mr trump and urged restraint. our washington correspondent, laura bicker reports. president trump is leaving the north korean leader in no doubt. if he poses a threat to the us, there will be consequences. if anything happens to guam,

there's going to be big, big trouble in north korea. but then came this note of reassurance. you know what i can say — hopefully it'll all work out, 0k? nobody loves a peaceful solution better than president trump, that i can tell you. these us b—1 bombers are stationed in guam. their motto is "fight tonight." mr trump is keen to ensure north korea is aware of their presence. pyongyang has threatened to fire missiles at the pacific island, and although holidaymakers appear unfazed, the local government has issued leaflets urging them not to look at fireballs. but donald trump's ramped—up rhetoric is being backed by diplomatic measures. he has placed a call to president xi in beijing. mr trump wined and dined the chinese leader injanuary, in the hope that he would do more to rein in his trading partner. the threat of us involvement on the korean peninsula might

just force them to act. and it has emerged the trump administration has been in secret talks with north korea, discussions about americans imprisoned there and deteriorating relations. donald trump is not stepping back from his war of words with north korea. some feared his statements were off—the—cuff, on impulse. but it appears, for now, to be his strategy, to plant the idea in his enemies‘ mind that he is unpredictable, and not to be tested. laura bicker, bbc news, washington. earlier i spoke to our correspondent robin brant, who is in the south korean capital seoul, and i asked him what has changed this week. i think there are people here who are clearly very unsettled by what they hear coming from washington, or newjersey. they are not used to hearing a us president talk like that, even though donald trump may be taking a similar stance to what his predecessors have,

which is they do not want to see a nuclear north korea. i think we are seeing renewed pressure on china from the us president, hints that on monday he may announce an investigation into the trade relationship between his country and china. that‘s because he believes that‘s not fair. also, he believes china isn‘t doing enough to try to rein in north korea and persuade them to end their nuclear ambitions. pushback, as well, in that phone conversation that laura mentioned between president xi and president trump, xijinping said to donald trump, all relevant parties should refrain in words and actions from exacerbating the situation. that is aimed at washington dc and pyongyang. everybody relevant to this equation at the moment. is there much confidence that the sanctions agreed by the un security council last weekend will actually be effective in trying to persuade the north koreans

they have no option but to return to negotiations over their desire for nuclear weapons capability? there are different views on that, to be honest. this is the latest in a line of security council resolutions aimed at tightening the noose around north korea and restricting its trade further. china continues to allow certain trade with north korea in minerals and other things, which it says orange releva nt to other things, which it says orange relevant to the nuclear programme. —— which it says are not relevant. the trade restrictions don‘t seem to have stopped kim jong—un and his nuclear ambitions. that‘s why china is so crucial, if they could do more in terms of what their banks do in

trading relationships with north korea, this is what president trump elites, maybe that would add more pressure and build upon the sanctions. that‘s our correspondent in south korea talking earlier. let‘s take a look at the london athletics stadium. there is usain bolt. she has just been taking part in the relay. we can expect a loud and tumultuous sign of popular affection for this very popular runner. the big question is what will he do next in his career as he leaves the athletics field for the last time this evening. 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 is 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. let your mailfrom simon kelly, from

the world college of ophthalmologists. thank you for joining us. what are your concerns about the medical risks associated with these devices? good one. thank you for talking to me. concerns are potential damage to the eyes of children and teenagers. we‘ve seen many cases of this and we have seen a survey of ophthalmologist in the uk and there are 150 such cases, majority in teenagers. i‘m sure it‘s the tip of the iceberg. i‘ve seen insta nces the tip of the iceberg. i‘ve seen instances in my own practice. i‘ve published on this matter. our concern is teenagers. we welcome this move from the government to look into it. in terms of their misuse, is it that people are treating them like a toy, almost

like a toy gun, the kind of thing you might, like a torch. we used to wave a torch in each other‘s eyes like a wave a torch in each other‘s eyes likea kid. wave a torch in each other‘s eyes like a kid. —— as a kid. wave a torch in each other‘s eyes like a kid. -- as a kid. there are two separate issues and we‘ve already covered the issues about the pilots. what i‘m talking about as youngsters, particularly, shining laser pointers at other people and themselves. injuring other youngsters and themselves. parents may not be aware how powerful these lasers. they have become more available and are easy to buy now. these are not toys. the same way we can givea these are not toys. the same way we can give a child or a youngster a hammer ora can give a child or a youngster a

hammer or a saw can give a child or a youngster a hammer ora sawa can give a child or a youngster a hammer or a saw a toy, the laser pointer can also cause accidents. we welcome the government‘s call for evidence on this issue. we have progressed beyond this, the government said it was going to introduce a criminal offence. as much as anything, its behaviour change, surely? indeed. my experience has been dealing with families where most of the parents have little knowledge of how serious burns can be and how powerful the lasers are. i would particularly draw attention to children with behavioural problems. they are particularly for no—ball —— for no—ball mac. particularly for no—ball —— for no-ball mac. you're talking about friends, have you seen permanent

damage. —— about burns. friends, have you seen permanent damage. -- about burns. in the most severe cases, the central part of the retina can be burned and a permanent hole can. minor issues can also occur, where cia is not permanently damage. —— where the i guess not. i have seen a youngster that was permanently blinded, however. thank you very much for speaking to us. an anti—islam candidate has been allowed to stand for the ukip leadership. anne marie waters, a former labour activist and founder of the sharia watch pressure group, has previously called islam "evil". her leadership bid has split the party, with some meps threatening to quit if she was allowed into the race. i am joined by our political correspondent to get more on this. we will perhaps find out whether

these threats will be carried out, but how serious is the division in the party? how strongly or feelings running? i think pretty high, within the last few minutes one ukip mep has resigned his job the last few minutes one ukip mep has resigned hisjob as the last few minutes one ukip mep has resigned his job as a whip the last few minutes one ukip mep has resigned hisjob as a whip in the european parliament over anne marie waters‘s position in standing in this leadership contest. we have several meps threatening to resign if she is elected. plenty of others will be considering their positions if she is elected because she has such a hard—line position and many see this as going too far in that direction. of course, ukip has faced allegations of being a plumber for and stood on a —— of being islamophobic and stood on a platform

of banning the burkha. but anne marie waters has called islam a killing machine. they are concerned that under her leadership ukip could become a single issue party. paul nuttall didn‘t last very long, before that the brief leadership of burne—jones, some people say she was never actually do, nigel farage coming in and out as leader. this leadership question seems to be born they just can‘t as. leadership question seems to be born theyjust can't as. yes, ukip has beenin theyjust can't as. yes, ukip has been in turmoilfor some theyjust can't as. yes, ukip has been in turmoil for some time, really since the brexit vote. that is because its reason for existing has essentially gone. it‘s struggling to come up with a new direction. paul nuttall tried to ta ke direction. paul nuttall tried to take ukip into the last election in

a platform as being the court blocks of brexit. he used very strong language about a radical is fun, calling it a cancer. —— about radical islam. the challenge for any new leader is to reignite ukip and reinvigorate the party and broaden its appeal, whether this platform of a very anti—islamic message is the right one to do so, we still have to see. they have a range of candidates, you can‘t complain the choice is restricted. that is one point being made, that actually there are are 11 candidates and many different policy platforms. we heard this morning from the deputy leader who said that anne marie waters should be able to stand because it

would be up to the members to decide. i think that basically it's a good thing that anne marie is on the ballot paper because then people can question her, they can debate, we will all debate over the coming six weeks. that can only be a good thing. i think that it's probably better than if she had been excluded from some reason. as i said, we actually have a very rigorous vetting process, you have to go through all sorts of things and every candidate satisfied those criteria, so that's the end of the story on that front. i think there is going to be a difference of opinion within ukip about her candidacy but there are ten other candidates. we will hear the policy platforms over the summer. the policy platforms over the summer. members will then be balloted and we expect to hear the results by the end of september at the ukip conference. the headlines on bbc news:

president trump issues a fresh warning to warning north korea. he says they will ‘regret it fast‘ if it continues to threaten america or it‘s allies. the government is considering a crackdown on lasers pens and pointers. new restrictions could prevent pens being shone at planes and helicopters. two people have been killed in overnight protests after the disputed kenyan presidential election. re—elected president uhuru kenyatta has appealed for unity. let‘s stay with the situation in kenya. 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 odinga, with at least two people reported killed in overnight protests. tomi oladipo reports from nairobi. i wish to declare honourable uhuru kenyatta president—elect and honourable william ruto as the deputy presidentelect.

applause. after a bitterly fought campaign, it‘s official — president kenyatta will be in office for another five years. mr kenyatta won more than half of votes cast. the news brought out his supporters in their numbers, following a long wait for results. the party is over, it‘s the day after and for kenya now comes the hard part. those celebrating mr kenyatta‘s win last night did so in the hope of a better quality of life. now the president has to deliver for them and he also has to gain the trust of the millions across the country who did not vote for him. and mr kenyatta has been reaching out to the other side. we cannot fight over an election. we have seen the results of political violence and i am certain that there is no single kenyan who would wish for us to go back to those days.

but angry protests broke out overnight in some opposition strongholds. the main opposition party has rejected the election results and says it does not trust the courts to handle its concerns fairly. its next move will be crucial in determining whether kenya moves on peacefully. let‘s go live to nairobi — sammy awami is there. thank you for coming to talk to us. we have some more news on the casualties. what can you tell us?|j just came from a press conference by the interior security minister and he has tonight police using live bullets. he says no deaths have been caused by police using force. we

have received this report last night saying that people have been shot dead, in parts of nairobi. we continue to receive reports about riots in violence in slums in nairobi. the interior minister says that the country at large remains calm. police are dealing with criminals and not peaceful demonstrators. christmas back the allegation that this election was stolen from raila odinga. he was 1.5 million votes behind. their work suggestions of some kind of hack carried out on the computers. will his party pursue that? what are its options? that is something that we are waiting to hear. last night, the opposition group, right before the

announcement, said they would not go to court because they have been there before and the results did not satisfy them. they were not clear what would happen. we have to wait, the official winner has now been announced. thank you for being with us. announced. thank you for being with us. we know you will update is during the course of the day. sta rgazers during the course of the day. stargazers will be hoping to get a great view of the nutritional tonight. hundreds of messieurs wall street across the sky in a display that might be visible around the world. —— hundreds of meteors will streak. i don‘t know if there will be time for that in the bbc sports centre. we have been glued to the screens. so much action hero does money. the

world athletics championships have been under way in london. the notes of —— the penultimate day of the competition. lots to look forward so lets go live to the london stadium and jessica creighton. all eyes have been on one man, haven‘t they? all eyes have been on one man, haven't they? yes, usain bolt. considered one of the greatest athletes ever. noise has reached fever pitch. the phone is absolutely adore usain bolt. anotherfaultless performance from the main‘s team. as would expect, a comfortable victory for them. usain bolt taking the bat for them. usain bolt taking the bat for them. usain bolt taking the bat for the final leg, powering through. they are easily through to tonight‘s

final. it's a great team. these guys are young but the crowd is wonderful and they did what they have to do and they did what they have to do and that is it. any nerves for you today? father—mac i enjoyed it lies more than anything. how do you feel about that? it's ha rd how do you feel about that? it's hard to say. for me, the energy has been brilliant. great britain's men‘s team also through. they got the bat and safely round. we know it‘s been an issue for the men‘s relay team in the past. —— they got the button safely round. we don't talk much about our expectations. we

know what we wanted to do. we don't need to talk about it. we are here for the metals and everybody knows that. we don't need to emphasise it any more. hopefully we will get the metals tonight. there is the women's relay team. they are safely through. they looked comfortable. they include the fastest british women of all time. it was the final leg and they are through to the final tonight. you're running with everybody and they are running alongside us. that's what we need. we've run together before and we have a unique bond. it'sjust about bringing these speed. it'sjust made me so bringing these speed. it'sjust made me so happy with these girls. today was about qualifying and we'll see how the next round goes. lots of noise at the walton stadium. next is

the four by 400 metre. fans are flying their flag is, the four by 400 metre. fans are flying theirflag is, unionjacks all over the place. fantastic atmosphere. after this, the second day of the minster casaubon. the first —— the the catalogue. ashley brya nt first —— the the catalogue. ashley bryant competing for great britain. he was second in the heart of it. the organisers are still crunching the numbers to see what difference his results will make to the overall standings. it looks as though the woman‘s team have just finished second, so you would hope they are safely through to the final. in the next hour and i‘ll you know. safely through to the final. in the next hour and i'll you know. thank you, we will be watching.

after arsenal‘s thrilling win over leicester in the opening match of the new premier league season, there are seven matches today. liverpool, whose star midfielder phillipe countinho handed in a transfer request yesterday, begin theircampaign with a lunchtime visit to watford. champions chelsea are home to burnley. and two of the three newly promoted sides are in action today. brighton welcome big spending manchester city to the amex stadium, while huddersfield, who were last in the top flight in 1972, travel to crystal palace that‘s all the spot. now for the weather. the weekend has had something of a next start, depending where you are across the british isles. for some, decent spells of sunshine, although don‘t hold me to that staying there through the course of the afternoon. further south, in the south coast, at least in the south—eastern quarter, we‘ve seen an old weather front thickening the cloud, the odd spot of rain.

further north, another weather system is lurking in that band of cloud, bringing quite a wet start to central, southern and south—eastern parts of scotland. through the course of the afternoon, we‘ll drag that band of cloud and showery rain into the north—east of england. hopefully, kent and sussex will begin to brighten up at some point during proceedings. if we swing away towards the south—west, you are in for a really decent afternoon. a bit further north, just enough in the way of cloud for one or two passing showers through the midlands and wales. the thickest of the cloud will always be reserved close to the old weather front on the eastern side of the pennines. some showery bursts of rain there under fairly leaden skies. for northern ireland, the greater part of scotland, there will be some sunny intervals. quite a bit of dry weather, some passing showers on the breeze across the northern parts of scotland. further south, if you‘re planning on heading towards the athletics in the east of london, i don‘t think the weather will get in the way. it‘s going to be quite a decent afternoon and evening for proceedings. that old weather front dragging the last of its showers offshore as we get into the wee hours of sunday.

going to be quite a chilly night, the sky is beginning to clear. temperatures will begin to fall away, quite chilly for parts of the north of england, scotland, northern ireland. that‘s good news if you‘ve got an eye on the meteor showers. it may be that many areas are in with a chance of seeing some activity. starting sunday on a cool note but plenty of sunshine, through the day some cloud developing and that will eventually fill in across parts of wales and the south—west. another weather front works its way slowly but surely towards the british isles and there is all the wind and rain from it during monday, quite a wet day for these northern, central and western parts. best of the weather in the east. hello and welcome to dateline london. i‘m shaun ley. in south africa,

leadership confirmed. in kenya, leadership disputed. new and as for north korea, is it kimjong—un or donald trump new and as for north korea, is it kimjong—un or donald trump who holds all the cards? with me to discuss this week‘s displays of leadership are: vincent magombe, director of the african journalists‘ network, africa inform international; thomas kielingerfrom germany‘s die welt; the sudanese writer nesrine malik; and the us—born, london—based political commentator ned temko. "fire and fury" — donald trump‘s threat in response to north korea‘s self—proclaimed plan to attack guam, a us pacific territory. and if that wasn‘t enough to restrain kimjong—un, how about "military solutions are now fully in place, locked and loaded"? the us president‘s tweet on friday. net, how much of this is horrible and bluster, and how much of it reflect a real change in the atmosphere of this relationship that has really been frozen in time for

60 years? the danger is we don't know. i will start by making a safe prediction. save if only because i am wrong, no one will be had to know. and that is i am fairly confident we are not on the brink of nuclear war. but should we be worried? absolutely yes. on the korean peninsular, even a conventional war could kill hundreds of thousands of people within a