this is bbc news. the headlines at 10 pm. ukip loses its only mp after douglas carswell quits to sit as an independent, saying the party has achieved its objective. we can be absolutely certain that brexit is in good hands. we are going to leave and all of the things that vote leave campaigned for are going to come to pass. it's wonderful. ukip leader paul nuttall says ca rswell‘s resignation isn't a surprise, saying he was never comfortable as a u—kipper. tributes to the police officer killed in the westminster terror attack. the investigation into khalid massood continues. one man remains in custody. a man has barricaded himself inside a bus on the las vegas strip, following a shooting that's left one person dead. and, one in hospital. and coming up at half ten, we'll have our first look at tomorrow morning's front pages. the observer reports on those coalition air strikes in the iraqi city of mosul,

accoridng to the un. —— thought to have killed more than 100 civilians, according to the un. good evening and welcome to bbc news. the uk independence party's only mp, douglas carswell, has announced he's quitting. he said he decided to leave because the party had achieved its goal of pulling britain out of the european union, adding that he was going on "amicable terms". he will now represent clacton in the house of commons as an independent mp but there are calls for him to face a by—election. earlier my colleague reeta chakra barti spoke to mr carswell in his first television interview since the announcement. blue on wednesday theresa may announces she is triggering article 50, my party, ukip, was set up 23 yea rs 50, my party, ukip, was set up 23 years ago to get us out of europe, job done, we have one. is that the

only reason for your existence, many would say that ukip is a bigger force than that? when you get into politics and people are elected to do things, there are all sorts of things you can convince yourself you are there to do, but the fundamental reason that i made the switch and the reason millions of people around the reason millions of people around the country made the switch was over the country made the switch was over the europe question, we can be sure now, absolutely certain that " b rex it" now, absolutely certain that "brexit" is in good hands, we are going to leave, all of the things that vote leave campaign four are going to come to pass. it is wonderful, this is a moment for celebration. you do this a few days before the prime minister triggers article 50 triggering the period of negotiation. why now? such a momentous, wonderful news, i thought about doing it a couple of days afterwards but, doing it now, that could allow context. i want people to go onto my blog and read what i have said, i avoided putting something in newspaper or briefing a journalist, i thought, something in newspaper or briefing a

journalist, ithought, right something in newspaper or briefing a journalist, i thought, right it on my blog, first of all, see if any bee reads it, it took a while(!) i wa nt bee reads it, it took a while(!) i want people to understand, for me, getting out of the european union is so important, i care so passionately about it that i was willing to change parties, call by elections. it is happening in three days' time, it is wonderful. what is going to happen now, because you say you will sit as an independent mp without triggering a by—election. you can do that, technically, but why? ifi triggering a by—election. you can do that, technically, but why? if i was switching party, without question i would call a by—election, i know that because i was the first mp in 26 years to do that, nobody makes you but i thought that when i was a conservative and wanted to join ukip, ifelta moral conservative and wanted to join ukip, ifelt a moral obligation, conservative and wanted to join ukip, ifelta moral obligation, a democratic obligation to do that. but i am not switching parties, i am the monster be not changing, not crossing the floor. i will still sit in opposition, holding the government to account. if you entered a world in which you would

automatically have a by—election if you left a party, farfrom empowering constituents, that would strengthen party politics. this is in rewrite and consistent with the principles of a direct democracy. i have said for election four times in cla cton have said for election four times in clacton and frinton, have won four times, and now, iam clacton and frinton, have won four times, and now, i am without the paraphernalia of the party hierarchy, i can focus entirely on my constituents needs. peter whittle, deputy leader of the uk independence party, told my colleague annita mcveigh that mr carswell has never been particularly committed to the party. luck, i mean, the fact is, the people who voted for ukip, and voted all the way along for ukip did not really vote for ukip because douglas ca rswell was really vote for ukip because douglas carswell was there, he has been a semidetached person for a prolonged time with this party. frankly, this is rather a nice breath of fresh

air. symbolically, symbolically, very important to have a member of parliament in the house of commons behind you. well, it is, if it is somebody who is utterly with you, as a party, buti somebody who is utterly with you, as a party, but i think that, douglas was never really comfortable in ukip, so that has been made clear. and, of course, we look forward very much to him being a man of principle, to have a by—election. we look forward to fighting the seat. he says there will not be a by—election. he says there will not be a by-election. he did? well, the fact is, he made quite a big fuss when he came over to ukip of standing as a man of honour. in his seat. and trying to get re—election. the same should apply here. the point is, douglas can go on his merry way, but the fact is, it makes almost no difference to us at all. deputy leader of ukip.

earlier i spoke tojeff bray, who is a ukip councillor in douglas carswell‘s clacton constituency, and i asked him if he was feeling as amicable as mr carswell claimed to be about the situation. yes, to a degree, i certainly am, douglas carswell is a good man, served as his own man, certainly his own man. i have no particular hard feelings. what do you make of his decision to go, effectively he seems to be saying that ukip has succeeded in its objective, we had the referendum, we are leaving the european union, implication is that there is nothing left for it to do. i understand the occasion, obviously i think he is completely wrong. if douglas feels the need to move on to something different, we should work with that. ukip have more to do. ukip will go on. such as? we need to keep the government honest, let's be honest, we have not triggered article 50 yet,

when we do, it is necessary for this country to get the best deal it can... sorry to interrupt, he says he thinks that you can trust theresa may to do that, you are not needed there to keep on the pressure, there is another eurosceptic conservatives. i do not think that everyone in the country trust theresa may as much as douglas carswell does. remains to be seen. we certainly have a big role to play in "brexit" and in other things, there is many things that ukip does, not least renewing the way that we do politics, we tend to do it in a more honest, open, independent fashion than other parties do, i'm not sure other parties do that. honest, open, independent, is that why you think douglas carswell did not belong? the struggle as a conservative, he understood the way, the whip, effectively being told what to do, the conservative way of doing

things, and i think he struggled with the concept of not having that anymore, he had to think and do for his self, and perhaps he struggled with that. i don't know. what dp you think the prospects are, he has said he will stay, there will not be a by—election, a lot of your colleagues think he should resign, we should not have a by—election, he will sit as an independent. presumably he will say his outlook remains the same. notwithstanding that, what you think his prospects are of holding the seat at a general election, a lot of people were surprised that he held it when he switched parties, tory seat, staying tory, proved that wrong, i wonder whether it is more douglas carswell‘s seat rather than tory or ukip. i'm not sure that is true, he will be knows himself that he will struggle to hold this seat in clacton now. he has probably lost a good deal of conservative support by moving to ukip and ukip support lost by moving to the conservatives, this is not a douglas carswell seat, it is far more complex than that. it is not a conservative

seat either, we will be doing our best to prove that. ultimately we will be challenging for that. as for whether he should hold a by—election, douglas has said, the standard himself, the standard himself, in such circumstances, a by—election should always called. i think it is difficult for him not to call one this time, having made the play that he did previously, but i accept that having moved to independent, he can argue we still do —— moved to independent, he can arguably still do the things he promised to. the jury is out, we will see if he does. will you be having a farewell dinner for him? probably not...! laughter thank you very much. ukip councillor, thank you forjoining us this evening. studio: douglas ca rswell studio: douglas carswell has explained that he will be an

independent rather than a ukip mp, he has left ukip will stop and we'll find out how this story, and many others, are covered in tomorrow's front pages at 10:30 and 11:30pm this evening in the papers, our guests joining me tonight are ruth lea, economic adviser for arbuthnot banking group and john rentoul, chief political columnist at the independent. a gunman has barricaded himself inside a bus on the main strip in las vegas after a shooting which left one person dead and another one in hospital. the standoff began near the cosmopolitan hotel casino and pa rt the cosmopolitan hotel casino and part of the las vegas boulevard remains closed. police say they do not believe there are any other suspects a former head of the metropolitan police has called for changes to security at westminster, following the attack on wednesday. there have been more tributes for pc keith palmer who was guarding parliament when he was stabbed. former commissioner lord blair said there should be a review of the arming of officers. detectives are

trying to discover when and why the attacker, khalid masood, became radicalised. joining me now is hifsa haroon—iqbal, west midlands regional lead for further and higher education at prevent. let me ask you first of all, obviously your focus is on young men and young women, being in education, this guy, it is suggested, was radicalised later on, possibly imprison, how big a challenge does it represent older people, who have gone through the education system, via ‘s opportunities for authorities to influence them and radicalised at a later stage, risk becoming radicalised, particularly in an environment like prison, where they may be undergoing education but there may be influences when they are away from the authorities and out of sight of risen offices? are away from the authorities and out of sight of risen offices7m are away from the authorities and out of sight of risen offices? it is important to say that at the end of the day, prevent does not give a

profile of who could or could not be radicalised. we talk about vulnerability, people can be vulnerable for all sorts of reasons, alongside that goes the age as well, so we don't say that younger people may be more vulnerable than older people. prevent is about all forms of extremism, it applies in lots of different settings. people in prisons, we work with people in schools, in colleges, and in universities. this individual who committed the atrocity last week we believe was radicalised in prison. and unfortunately, occasionally, things slip through the net. we know that people are vulnerable because they may have a sense of injustice, because of identity issues, because of drugs abuse, all sorts of reasons make somebody vulnerable within this process of radicalisation. u nfortu nately process of radicalisation. unfortunately sometimes, despite us having these mechanisms in place, to

try to support people, sometimes it will slip through the net. what would you characterise as the scale of the problem, in terms of those that you deal with, how often are you getting referrals, what kind of numbers, can you give us any sense of the scale of the potential problem? as far as numbers are concerned, since 2012, we have had about 1000 channel referrals that have gone through, just 400 over the last year. that is not necessarily related to daesh inspired terrorism, thatis related to daesh inspired terrorism, that is also around far right extremism as well. we have stopped over 150 people going out to syria, and 50 of those have been particularly young people from young families where alts have become involved. it is an issue, and we know that we have had 850 people from this country who have gone out to syria, the scale of the problem... it is like anything else,

how long is a piece of string? we know that it is an issue. we are going to have to leave it there u nfortu nately, going to have to leave it there unfortunately, thank you very much for speaking with us. west midlands regional lead for further and higher education at prevent. breaking news from birkenhead, on merseyside, and those reports that have received of what has been described as a huge explosion, although it is impossible to know how large it may be, reports are that it has affected the railway line, trains travelling between birkenhead central and ellesmere point and chester. police are dealing with the incident. taking place at beddington, close to birkenhead. we will bring you more on that as soon as we have it. stay with us, we will have more on that story in the rest of bbc news coverage throughout the hour, in a few moments we will be joining kate silverton for the national news. ukip loses its only mp

as douglas carswell quits to sit as an independent. he joined the party after defecting from the conservatives in 2014. now he says he's achieved his main objective. i went into ukip and made the switch in order to get us out of the european union. theresa may means brexit is in safe hands. tonight, nigel farage said hejumped before he was pushed. we'll look at what is next for ukip as a party. also tonight. fresh concerns over security at westminster as footage shows parliament's gates were left unmanned after wednesday's attack. the human cost of the battle for mosul as thousands flee the fighting. and, police investigate as the bodies of two teenagers

are found at the foot of cliffs in north yorkshire. good evening. the uk independence party's only mp, douglas carswell, has announced he's leaving the party. he said he decided to leave because the party had achieved its goal of pulling britain out of the european union, adding that he was going on amicable terms. he will now represent clacton as an independent mp but there are calls for him to face a by—election. our political correspondent alex forsyth reports. shake hands? we need to be relaxed about it. fixed grins but no handshake. there's been no love lost between douglas carswell and some in ukip for sometime. when hejoined the party in 2014 it was a big deal. i am today leaving the conservative

party and joining ukip. but his relationship with the then leader soon soured. differences in policies and personalities and today he quit ukip saying the party's job was done now the country had backed brexit. we have achieved what ukip was for. if other people want to carry it on, i wish them all the best. but you were the party's only mp. by quitting have you not put the final nail in ukip's coffin? i went into ukip and made the switch in order to get us out of the european union. theresa may means brexit is in safe hands. no tears from nigel farage, the former party leader said douglas ca rswell jumped before he was pushed and was never truly ukip. current leaders who saw him as a cause of division agree. it really won't make very much difference to us other than drawing a line under something which has really caused nothing

but sort of heartache for about a year, more than a year. douglas was never that comfortable in the party and so i think that really he will go on his merry way. douglas carswell is duly elected as a member of parliament for the said constituency, thank you. last time he changed allegiances the clacton mp made big play of asking voters for approval out of principle, but not this time. if i was switching parties, if i was going from ukip to the conservatives, then absolutely i would feel honour bound to call a by—election. the voters voted for a ukip mp and now they're getting an independent mp. when i was a conservative and i switched to ukip i triggered a by—election, ithink i was the first member of parliament in 26 years to insist upon doing that but i am not changing parties, i am not switching sides. in his constituency, some have questioned his decision. a disgrace really, he was doing well for ukip. it's down to him at the end of the day if he wants to do that, can't do a lot about it, can we?

mr carswell hasn't ruled out returning to the tories but says for now he will be an independent mp. his parting gift to ukip — further questions over the party's relevance in post—brexit britain. alex forsyth is in westminster for us now. so where does this leave ukip's future? ukip's been plagued by bitter infighting and much has stemmed from differences between the former leader, nigel farage, and his supporters and douglas carswell and his supporters on key issues like the approach to the eu referendum and immigration. it's not a huge surprise that douglas carswell has left and many think this will be a chance to draw a line under what's been the cause of much division. he was the party's only mp. it won't make much difference to their influence in parliament because that was limited anyway. but it is important symbolically. ukip always struggled to turn its popular support into parliamentary seats. the leader paul nuttall recently

failed to win a by—election in stoke. now douglas carswell has chosen to quit three days before theresa may's due to push the button and start the formal brexit process. he says that will mean ukip's job is done so once again the party is facing the question what does ukip stand for now the uk is leaving the eu? thank you. a former head of the metropolitan police has called for changes to security there, following wednesday's attack. former commissioner lord blair said there should be a review of the arming of officers. one man, arrested in birmingham, remains in police custody. our home affairs correspondent june kelly reports. minutes after the terrorist attack in the precincts of the palace of westminster. on the ground is constable keith palmer who was stabbed to death. his killer, khalid masood, has been shot by police. meanwhile, armed officers stationed here have left the scene to investigate the commotion outside the gates where masood's car has mounted the pavement and crashed.

the gates, meanwhile, have been left unguarded and wide open, anyone could have got through. an understandable error, according to a former head of scotland yard who nevertheless believes that in future security here will have to be more stringent. i am absolutely certain there will be a review now of the kind of outer soft rim, always behind it is the inner core of armed officers, but pc keith palmer has paid for his life for that soft outer rim and i think his family, at least, and everybody else, needs the reassurance that will be reviewed. the bbc has obtained new footage of the police response. a fleet of cars carrying teams of marksmen racing down the embankment. this was shortly after khalid masood's trail of carnage which began on westminster bridge. questions remain unanswered about his route to radicalisation. he was a violent criminal before converting to islam more than a decade ago. one of his victims who survived but with serious injuries

is romanian tourist andrea cristea who was hurled into the thames. she was in london with her partner, andrei burnaz, who was also hurt. in romania, a friend paid tribute to the emergency services in london. translation: we would especially like to thank the doctors and nurses, all the medical staff for everything they're doing to help them. and today at scotland yard, police officers who were part of the emergency response laid flowers in memory of their colleague keith palmer who they tried to help. june kelly, bbc news. there's growing concern about the fate of civilians in the iraqi city of mosul where government forces are trying to drive out so—called islamic state. the united nations has warned of a terrible loss of life, and tonight the us—led coalition said it was behind an airstrike which is believed to have killed dozens of civilians two weeks ago. our middle east editorjeremy bowen

is in western mosul. thousands of people have arrived, have walked out of those parts of mosul still controlled by islamic state and it's a big area, in the last couple of days and they've arrived really with just the clothes they're standing up in and maybe a few spare odds and ends. they need food, they need water, they need shelter. as the one that may be coming, literally coming down that road, in the next weeks, from where the black smoke is, which is where the islamic state positions are here in mosul, they are apparently about 800 metres, a kilometre, down that way. this is very much a theatre of war. the people who have been coming in have been talking about what they've been through. they've talked about air strikes

that have come in in the last days and as well as killing people from islamic state, have killed hundreds of civilians. they've complained that the jihadists have used them as human shields but they have also, in tears and anger, spoken very bitterly about the effects of air strikes on civilians. i spoke to multiple witnesses who said that there are perhaps hundreds of bodies still lying in the rubble that people can't get to. jeremy bowen, bbc news, mosul. the bodies of two 17—year—old boys have been found at the foot of cliffs at saltburn near middlesborough. cleveland police have begun an investigation and say the families of both teenagers are being supported by specialist officers. linsey smith reports. peaceful and calm, just as it was before 7.00pm last night

when cleveland police received the first reports of a casualty at huntcliff. what the police and coastguard discovered on arrival was far worse, it was the bodies of two 17—year—old boys on a ledge. they were airlifted to the james cook hospital where they were pronounced dead on arrival. i was walking into town and there was loads of police and ambulance which i thought was really unusual for the area, i saw loads of police first and i wonder is it the right thing to be walking into town? a popular walking spot, tonight those enjoying the area told us of the perilous nature of the cliff—tops. it does have some very sheer drops towards the edge but there is plenty of signage up advising to keep clear away from the cliff edge. but the path does go very close to it. the teenagers' families are tonight being supported by cleveland police while officers try to establish exactly how these two teenagers died. linsey smith, bbc news, saltburn—by—the—sea. european union leaders have marked

the 60th anniversary of the eu's founding treaty with a formal declaration promising to deepen unity. theresa may did not attend. the meeting came as tens of thousands of people protested in london against brexitjust four days before the formal process of leaving the eu is triggered. in the last hour, merseyside fire and rescue say they're dealing with the aftermath of an explosion on the wirral that is believed to have been caused by a suspected gas leak. they say it took place in the new ferry area and they also have a special rescue team on their way. network rail say it's suspended trains in the area. the leader of northern ireland's cross—community alliance party, naomi long, has told her party conference that another election would be worse than a waste of time given northern ireland has no budget and no plan for brexit.

the east belfast mla was giving her first address as party leader having succeeded formerjustice minister david ford in october. it's a year since the eu and turkey agreed a deal to stem the flow of migrants coming into europe. under the agreement, all but the most vulnerable people would be returned to turkey — on the condition the eu would take more syrian refugees from camps there. but legal challenges and bureaucratic delays have left thousands of people stranded on greek islands and the number of migrants arriving is again on the rise. paul adams sent this report from the greek island of keos. a year ago, these waters fell silent. a deal was struck, enforcement followed. europe breathed a sigh of relief. but it's not over. on keos the camps are overflowing once more, a surge of new arrivals joining those who have been trapped here for months.

abdullah arrived here the day the eu—turkey deal went into effect. a day earlier and he could have moved on. but he's been stuck for over a year, long enough to draw unfavourable parallels with life back home. under control isis maybe they would kill you any second but you live like a human being. here, they let your live because it's no reason to kill you. but other things, for example, they kill your hope, they kill your dreams. the government—run camp was supposed to be a model reception centre but secret filming from inside shows a place migrants call "the cage" where new arrivals are held for the first few hours. an intimidating first glimpse of europe and the start of a long bureaucratic process that seems designed to halt them in their tracks. people expected to spend here just a few days are stranded here for months which has impact on the psychology of people.

they don't have the perception that tomorrow the situation will be solved. they think that this thing can go on for years. the damage is not hard to find. abdul left aleppo last year. injanuary, he learned that his mother and sister were killed in an air strike. he feels utterly lost. i want safe country for me because i lose everything,