hello — you're watching bbc world news. i'm sally bundock. our top story this hour: more details emerge about the man who killed four people in the westminster attack. 52—year old khalid masood was a british muslim—convert with a history of violent crime. welcome to the programme — our other main stories this hour: tributes have been paid to those killed — one was celebrating his 25th wedding anniversary. and a key vote on president trump's replacement for obamacare is delayed as republicans in congress fail to agree. and the head of the fbi is accused of double standards by the man who ran hillary clinton's presidential bid. but first, more details have emerged about khalid masoud,

the 52—year—old man who drove a car into pedestrians on westminster bridge on wednesday before fatally stabbing a policeman guarding the houses of parliament. it's understood that khalid masood was born under the name adrian elms. police have also confirmed that a 75—year—old man, injured on westminster bridge, has died from his injuries. his identity has not yet been released. greg dawson has the latest. central london, salinity is thousands came together contribute to victims of wednesday ‘s attack. we wa nt to victims of wednesday ‘s attack. we want the world to know that we are free and we relish our freedom and we are proud to be british, we are proud to be londoners and we

hope we are an open society who will welcome everybody here. a few hundred yards from westminster bridge, flowers are laid outside the headquarters of london's metropolitan police in memory of keith palmer, the officer stabbed to death trying to protect parliament. inside the building, detectives continue to piece together information about the man who carried out the attack. it is now understood khalid masood was born adrien elms. it is possible he changed his name after converting to islam. he is originally from kent but recently lived in birmingham in the west midlands. several properties have been searched in the city. one person described the raid is like a scene from the film. like a wall, you back. —— yeah. down the streets. something you see only in movies. i sought behind my windows on the street. it was very

frightening. it was like, you know, what the hell is happening here? frightening. it was like, you know, what the hell is happening here7m was also in birmingham that khalid masood height a car that he used as a deadly weapon on westminster bridge. he spent his final martin bright and at this hotel before driving north the next day to kill on the of london. detectives believe he carried out this attack are but eight other people are still being held on suspicious —— suspicion of preparing terrorist acts. as the investigation continues, the focus for these blunders —— londoners remains of the victims and a determination that daily life continues in the city. tributes have been paid to all the victims — including the police officer — keith palmer — who was stabbed to death within the grounds of the palace of westminster. as well as the as yet unnamed 75—year—old, two others victims were named on thursday — aysha frade lived in london with her husband and two young daughters. and kurt cochrane — an american citizen — was in london with his wife

to celebrate their 25th anniversary. our correspondent sarah campbell reports on the victims. a mother on the school run, mown down in broad daylight, aysha frade was 43 years old, and leaves behind a husband and two young daughters. friends and neighbours have been paying tribute to her. she was just a lovely person, with two lovely children. two lovely, lovely girls. how are these children? they've lost their mother. she worked at a college, near westminster bridge, and was on her way to pick up her children when the attack happened. she was a lovely person. helpful, supportive, smiley, always willing to help out with whatever the challenges and demands that teaching staff might have at any given time. in london, celebrating their 25th wedding anniversary, melissa and kurt cochran, from utah, in the united states. they were due to fly home today, but kurt was killed and melissa was left seriously injured. president trump described mr cochran as a great american. his family said

they are heartbroken. the couple's next—door neighbour said kurt was friends with everyone. this is going to be a sad, tough time for us, in the neighbourhood. i really feel bad, and i... i think of melissa, and what she's going to have to face in the next little while. and i'm sure the neighbourhood will gather around her, and help her any way they can. and this evening, another death. a 75—year—old man who had been in hospital following the attack had his life support withdrawn. he is yet to be named. undergoing treatment for a fractured leg is 19—year—old travis frain. he was with fellow politics students on a field trip to parliament when he was hit head—on by the car. he was pictured as emergency crews stretchered him away from the scene. another school trip caught up in the chaos — three french students from this school in brittany were injured. two of them were reported to have suffered serious fractures. romanian officials say this woman,

andreea cristea, who fell into the thames, has undergone surgery to treat a blood clot on her brain. her boyfriend, andre burnaz, sustained a broken foot. they had been celebrating her birthday. several people remain in hospital, including two police officers with serious injuries. this was an attack in london, but its effects are being felt across the world. sarah campbell, bbc news. ever since the july 7 bombings in london in 2005, counter—terrorism agencies have worked to improve their ability to uncover major plots involving groups of people. but the threat posed by lone operators, avoiding sophisticated methods, is far more difficult to uncover. our security correspondent gordon corera looks at the difficulties facing the intelligences services. questions about surveillance. khalid masood, the prime minister said, did come across mi5‘s radar a few years ago.

but he was not being watched at the time he was planning his attack. that has led some to question whether more could have been done to stop him. it is not a new question. after the 7july bombings in 2005, it emerged some of the men had, like masood, cropped up in the periphery of an mi5 investigation. and the same was true of those responsible for the killing of lee rigby in woolwich. the security services and their colleagues in the police do a magnificentjob, and the intelligence services altogether know a great deal about what's going on. but there will always be the possibility to that somebody can get through. so why does this happen? one problem for the authorities is scale. at the moment, there are around 3,000 people suspected of some kind of terrorist—related activity, and there are more than 500 live police investigations. it takes dozens of people to watch one individual round the clock. that means there have to be choices. it is very difficult to prioritise

which ones should be looked at closely, and scrutinised closely, at any one time. you know, it is not an exact science. these are fine judgements that have to be made by senior police and senior intelligence officers. you know, at haste, often, with limited resources and partial information. many people cross mi5‘s radar. but the challenge, as one person puts it, is working out who to put under the microscope, and to try and spot if their behaviour changes over time. for instance, are they moving towards planning an actual attack? all of that is getting harder in a world of low—tech terrorists, who sometimes can act alone. so—called islamic state claimed masood was their soldier. but that doesn't necessarily mean he was directed, rather than just inspired by them. investigators will want to know if there was any contact.

police and mi5 rely on communities here for help. even if someone acts alone, it is rare for no—one else to have had any knowledge or suspicions. but they need to be willing to pass them on. where they have come across people who they feel are creating divisions within our community, are purporting extremism, you know, extremism and fundamentalism, you know, they are saying to our security services, you know, just be mindful about this individual. but they're also reluctant to do so, because sometimes they're not sure whether the security services will deal with them in a fair manner. surveillance by police and mi5 has foiled many plots in recent years. but, at this early stage, it is impossible to say if this attack could have been stopped. gordon corera, bbc news. and you can find much more on the westminster terror attack on our website including details of what we know about the killer khalid masood. just log on to bbc.com/news.

in other news: british scientists say they have made a major breakthrough in the diagnosis and treatment of tuberculosis. using a process called genome sequencing they are able to isolate different strains of tb much more quickly which means patients have a greater chance of recovery. one of the leading candidates in the french presidential election, the centrist emmanuel macron, has won the backing of a senior member of the socialist government. the defence minister, jean—yves le drian, is expected to make his support public in a newspaper interview on friday. mr macron says he has a great deal of respect for the minister. russia's state—controlled television has rejected an offer from organisers of the eurovision song contest to allow their nation's contestant to perform via satellite link. this year's host country ukraine has

banned the russian singer yulia samoilova from the country, accusing her of illegally visiting crimea, which was annexed by russia three years ago. republican leaders have delayed their planned vote in the congress on donald trump's healthcare reforms, in a setback for the president. more than two dozen republican members of congress oppose the bill that will replace obamacare. laura bicker reports from washington. donald trump is done doing deals. after a frantic few days, his message to republicans — vote for change or there'll be no changes at all. this has forced the hand of the house speaker. for 7.5 years, we have been promising the american people that we will repeal and replace this broken law because it's collapsing and it's failing families, and tomorrow we're

proceeding. but the votes are far from assured as different factions of the party can't agree. for some, the health reforms go too far. for others, not far enough. i am still a no at this time. i'm desperately trying to get to yes and i think the president knows that. outside the capitol, they gathered in fear and frustration. all: hey hey, ho ho, donald trump has got to go. 2a million americans could lose their health insurance if the reforms go ahead. jessica sanchez has spina bifida. her family are already struggling to afford her medication. we try our hardest to save money because we know the medications are going to finish in 30 days. they only last me 30 days so every month we have to start saving more and more money so it can last us longer, and sometimes it's not possible. protesters circled the white house, hoping the president would hear their cries.

they worry about losing maternity and mental healthca re. but inside the gates, he was surrounded by those who support his key campaign pledge. for many, the price of health insurance has shot up and that's one of the reasons they chose change and trump. by the way, it's close, not because obamacare's good, it's close because of politics. they know it's no good, everybody knows it's no good. it's only politics because we have a great bill and i think we have a very good chance, but it's only politics. but the president still has some arm—twisting to do. we're going to have a long talk. i'm not gonna make it too long because i have to get votes, i don't wanna spend too much time with you and then lose by one vote, then i'm going to blame the truckers! donald trump has issued his ultimatum. after a delay, there will be a vote in the morning, but this is a political roll of the dice with a very real prospect of defeat.

laura bicker, bbc news, washington. we would talk about the impact of that story on financial —— markets later. still to come: a vigilfor the victims of wednesday's attack. and london's mayor says it won't divide the city. so proud of both of you. with great regret, the committee have decided that south africa be excluded from the 1970 competition. streaking across the sky, the white hot wreckage from mir drew gasps from onlookers on fiji. this is bbc world news. i'm sally bundock.

the latest headlines. the perpetrator of the westminster attack has been identified as a 52—year—old british man, who converted to islam and changed his name to khalid masood. president trump has insisted that the us congress votes on republican healthcare reforms on friday even though it's unclear whether the bill has enough support to pass. the attack in london has focused minds again on the global threat posed by so—called islamic state — and how to combat it. in syria, the military battle to defeat is in their self—proclaimed capital of raqqa in northern syria is gaining ground. and earlier this month, syrian forces, backed by their russian and iranian allies, recaptured the city of palmyra for the second time in the past year. our chief international correspondent lyse doucet travelled to palmyra to see what progress is being made in the fight against is. despite all the horror which

happened here, palmyra still takes your breath away. the monumental ruins ofan your breath away. the monumental ruins of an ancient roman city, ruined again in our time. occupied not once, but twice by the forces of so—called islamic state. the first time in 2015, this roman theatre was largely left as it stood. but in their last occupation they smashed their last occupation they smashed the carved facade. the centrepiece of this theatre. revenge, the syrians say, the triumphant concert staged by the russian red army concert followed day by the syrian orchestras. and then this ancient stage became the modern stage of ideas to carry out their grisly executions. but there atrocities and

abuses go far beyond this heritage and all that happened here in this theatre. this is the modern city of palmyra, what's left of it. this was the seat of power for the city council of palmyra. look at this. it was once a lovely grove of palm trees. now all of this place lies in ata ruined, trees. now all of this place lies in at a ruined, is lit and deserted. but you can still find winces of what life was like here under iis. they left their mark everywhere, evenin they left their mark everywhere, even in the metal signage. in the basement of a deserted building, we are shown at what is called a makeshift courtroom in the paper trail of ideas's brutal rule. ——

is‘s. trail of ideas's brutal rule. —— is's. a trail of ideas's brutal rule. —— is‘s. a rollcall of the dead. our league, executed. more stuff executed. leila. executed. these are the finals of their islamic court, the finals of their islamic court, the so—called dystonic court and is. once a vibrant city of 75,000, now a ghost town haunted by dark memories. people fled is and the ferocious battles here. modern and ancient palmyra. both now lie in ruins. that was our chief international correspondent. the man who ran hillary clinton's failed presidential bid has accused the fbi of ‘double standards' in its investigations during the election. john podesta has told the bbc fbi directorjames comey kept quiet about the investigation into possible collusion

between russia and the trump campaign, but went public about its inquiry into mrs clinton's hacked e—mails — just days before the vote itself. philippa thomas asked him if he was suspicious during the campaign. of course we thought that was going on for some time and argued to the press that they had to really look at that and try to dig into that and cover it. but it was a revelation that the fbi was looking at that as early as now evidently they were, it's kind of one more drip in something that i've been highly critical of the bureau about, which is the double standard they applied in this campaign. the intervention, the number of resources they spent, the scores of fbi agents they had poring over hillary clinton's e—mail server, which jim comey, the fbi director, ultimately concluded that it wasn't even

a close call, there was nothing worth prosecuting there, compared to their engagement on the russian side, his interventionjust 11 days before the election to say i'm going to reopen this. the clinton investigation, he had this total silence on with respect to the russian intervention and now the potential collusion between the trump campaign and the russian actors was really a double standard that is still inexplicable to me. you're very calm about this but i imagine that when it was confirmed... i'm very angry about it. i've just learned to appear calm. do you have confidence in the fbi investigation given that you clearly don't have confidence in their impartiality during the election? i think at this point i've never accused mr comey of trying... i think he made very bad errors ofjudgement. i think he was being pressed

by forces inside the fbi who may themselves have wanted to influence the election. i'm not sure i would accuse him... not to see hillary clinton elected? yeah, to see hillary clinton lose. i think mr comey was motivated more from the pressure coming from republicans on capitol hill, pressure coming from people, particularly in his new york field office, that were putting pressure on him but against the advice of the department ofjustice, against the long—term practice of democrat and republicanjustice departments and fbi leadership. he got involved and i think it was a terrible error in judgement. john podesta, thank you. thank you. not far from the scene of wednesday's attack, several thousand people gathered in trafalgar square for a candlelit vigil to honour the victims. sophie raworth spoke to some of those who went to show

solidarity and respect. shoulder to shoulder. police, politicians, faith leaders from all over london. the mayor of london urged people tojoin him in trafalgar square. thousands answered his call. those evil and twisted individuals who try to destroy our shared way of life will never succeed and we condemn them. some were on their way home from work. others had felt compelled to head into the capital to be there. i'm a quiet person, i don't protest, i don't wave a banner, but today we wanted to come up just to show that we are with london, part of london, part of britain. just half a mile from westminster bridge, one man contemplating what might have been. i would have been there but i changed my plans for the day, so i kind of wish i did gojust

thinking if i could have helped stop it all. among the crowd, men in blue t—shirts. written on them the words "i am a muslim, ask me anything." it was extremely important for us to come down, especially as muslims, to come here and stand with fellow londoners, fellow countrymen, shoulder to shoulder, irrespective of religion, faith, creed, colour, and give out a message that these attacks cannot divide us. many of the police officers i spoke to say they'd been amazed by the number of people who'd wanted to thank them. this doesn't happen to you every day, does it, that members of the public come up to you, hug you, say thank you. no. no, not at all. when the first person did it i was shocked actually, i had to doubletake, but it makes you feel really warm to be honest. what was it like for you being here? it was very touching. i've never had so many people come up to me and thank you for... what you do.

..what we've done, but this isjust ourjob. candles for those who died and for the dozens more who's been injured. but the message is one of defiance and quiet dignity in a city that refuses to be cowed. that report from sophie raworth. tributes have been paid around the world as well. striking with this image of the british flag projected onto the brandenburg gate in berlin. just before christmas of people died when a truck was driven into crowds ata when a truck was driven into crowds at a market in berlin. quite a poignant moment. let us show you our live page, constantly updated on the bbc website with all the latest information. you can see pictures of

the vigil which sophie was reporting on but also some heartfelt news on this site. donations for the family of the murdered police officer have been flooded in. just 12 hours after it was set up, £300,000 have been raised and given to the family of pc keith palmer. stay with us. plenty more to come including world business report. hello there. good morning. things looking pretty good over the next few days. the satellite sequence shows that we saw a fair bit of cloud across the south and that tended to melt away, but it's coming back in overnight and there's more cloud across the north as well. places will turn chilly overnight but the clear skies overnight means there will also be a great deal of sunshine through the day today. beginning with september to around six or seven degrees for cardiff and london, tempered by degrees, heading

into more rural spots we will see a touch of frost developing but not so in the south—west. more cloud in the morning and outbreaks of rain. bright skies in the western parts of wales but the eastern side through the midlands, east anglia and the south—east will be cloudy first thing but essentially dry. six to eight degrees but breezy. etihad into northern england, northern ireland and the bulk of scotland. in the north of scotland there is more breeze or cloud and some rain free time through the morning. that rain is on the move and should move towards the east so it should be drying up here in the afternoon. staying on the cloudy side. cloud further south will melt away from the east so by the afternoon some good spell of sunshine with cloud in the south—west. temperatures is doing quite well. 11, 12, 12 degrees. a little bit cooler for on the north—east coast. into the evening, the cloud in the south—west warm melt away and a shower or two in northern ireland but in between, fine and dry with clear spells. a

touch of frost north wales, northwards in a frost will be in the rural spots in particular. the week and looks good. high—pressure dominates the weather and that settle things down nicely. there is a breeze towards the north and south of the uk. a great deal of sunshine after the chilly start. we will reach 1a or 15 degrees in the and east of scotland with 16 or 17 in some western parts of england. a little cooler around the south—eastern coast without breeze coming in from the north sea. again, we reach 1a, 15, 16 degrees. in the second part of the weekend, it looks good. sunday has more in the way of cloud. perhaps the more still on monday with rainbow through the weekend for the most part it is fine and settled. warm sunshine but still quite chilly in the night with a touch of frost. this is bbc world news. the headlines: details have emerged about the man who killed three civilians and a police officer in the westminster attack. he was born in britain and changed his name

to khalid masood after converting to islam. he had a history of violent crime. two of those who died in the attack have been named, one was a local school worker, the other was an american tourist celebrating his wedding anniversary in london. a third victim died in hospital on thursday but hasn't been named. president trump has demanded the us congress moved ahead with his healthcare reform plans, even though it's unclear whether they have enough support in the republican party to be passed. a vote is expected to take place on friday.