Andreea Cristea's boyfriend was due to propose on the day of the Westminster attack, the BBC learns.Read more
- Man, 75, who died in Westminster attack is named as Leslie Rhodes, from Clapham, London
- Westminster attacker Khalid Masood, 52, was originally called Adrian Russell Elms
- Masood spent two years teaching English in Saudia Arabia between 2005-2009
- Four people are still being questioned by police, six have been released
- Fifty people hurt in attack, two in critical condition, one has life-threatening injuries
- Prince Charles visits attack victims at King's College Hospital in London
It's been a day that has seen a portrait of the attacker Khalid Masood start to emerge. His reputation in his early years was of an "all-round-nice-guy". Fatherhood followed, then violence and prison.
The police have pressed on with their investigations as they try to establish whether Masood acted alone or was directed by others. They are now questioning just four people, down from 10. Another person has been bailed.
Two of the injured are still critical and one has life-threatening injuries.
Masood's fourth victim was named as Leslie Rhodes, a 75-year-old retired window cleaner from Clapham, south London. His neighbour, Michael Carney, who had known him for 40 years, played Queen songs at his hospital bedside. "He had no one. You can't have someone dying on their own," he said.
We are ending our rolling coverage on this live page but you can continue to follow the latest developments via our news story .
The six people released a short time ago from custody "fully co-operated with officers working on the investigation", West Midlands Police say.
Assistant Chief Constable Marcus Beale, who leads the West Midlands Counter Terrorism Unit, said: "As a result of their co-operation and our enquiries, we are completely satisfied that they are not connected in any way to the terrorist attack in Westminster on Wednesday.
"We are very appreciative of their co-operation and support."
The family of PC Kristofer Aves, who was badly injured when Khalid Masood's hired car mounted the pavement on Westminster Bridge, make a public statement for the first time:
Kris went to work on Wednesday full of pride as he was receiving a commendation for his exceptional work as a police liaison officer during a demonstration in 2016. What started as a celebratory day, ended in tragedy. Kris is now being treated in hospital, and as a family we remain at his bedside. We thank his colleagues and the public who have sent us messages of support.
Scenes from London after the terror attack in Westminster that left five dead and many injured.
Players in an international friendly between Germany and England's under-21 sides observe a minute's silence in tribute to those who died and were injured in the London attack. The teams are playing in the German city of Wiesbaden.
Rajan Basra, a research fellow at the International Centre for the Study of Radicalisation at King's College London, considers how typical is Khalid Masood's past of those who go on to carry out acts of terror:
In one crucial respect Masood does fit the picture of the criminals-turned-jihadists that we have examined - he was familiar with violence. If a terrorist has a criminal background, it is very often a violent one. Stabbings, assaults, and violent behaviour are recurrent patterns amongst perpetrators of terrorist attacks with existing criminal records. This violent group is disproportionately represented when compared with those convicted of non-violent crimes. For Masood, this familiarity with personal violence may have made the "jump" into ideologically motivated violence that much smaller than it would otherwise have been.
Read more from Rajan here.
The statement from the Metropolitan Police says there are now four people who remain in police custody pending further inquiries.
- A 58-year-old man arrested on Thursday morning at an address in Birmingham
- A 27-year-old man arrested late on Thursday, also in Birmingham
- A man of 35 arrested in the early hours of Friday at an address in Manchester
- And a 32-year-old woman arrested on Friday morning at a location in Manchester
All four were arrested on suspicion of preparation of terrorist acts.
Six people arrested as part of the investigation into the attack have been released from police custody, Scotland Yard says.
- A 21-year-old woman and a 23-year-old man who were arrested at an address in Birmingham
- A 26-year-old woman and three men, aged 28, 27 and 26, arrested at separate addresses in Birmingham
Another woman, aged 39, arrested at an east London address on suspicion of preparation of terrorist acts, has been released on bail until a date in late March.
An update on some of the fundraising pages set up:
- One set up to raise funds for the family of PC Palmer, the police officer stabbed to death, has passed £600,000
- A Muslim-led campaign - Muslims United for London - which is asking for donations to support the victims and their families, has raised more than £24,000
"Hero" MP Tobias Ellwood, who battled to save the life of PC Keith Palmer in the Westminster terror attack, has been appointed to the Privy Council, the historic group that advises monarchs.
The appointment was made in recognition of his role in responding to the attack, Downing Street says.
Mr Ellwood, a Conservative MP and former Army officer, performed mouth-to-mouth resuscitation on PC Palmer in New Palace Yard, Westminster.
Read more of the story here.
Security minister Ben Wallace has also been appointed to the Privy Council for his response.
Radio 4 PM
Khalid Masood - whose birth name was Adrian Russell Elms - had numerous aliases, complicating matters for the police investigation into the attacker.
But Tony Imossi, of the Association of British Investigators, says it's easy to adopt a new name.
"I can sign a document this afternoon and change my name through all official sources," he told BBC Radio 4's PM programme. "Passport, driving licence or bank accounts."
He adds: "Any record of me as Tony Imossi can disappear and I can become a different person."
Khalid Masood spent a number of years working in Saudi Arabia teaching English as a second language at the General Authority of Civil Aviation in the port city of Jeddah, the BBC understands.
He arrived there having already converted to Islam in the UK.
He was described as not having interacted socially with other teachers in Jeddah but as being popular among students and a keen weight trainer.
He was said not to have shown signs of extremism, the BBC has learned.
The Saudi Arabian Embassy in London releases a statement saying it "strongly condemns" the terrorist act.
It said Masood was in Saudi Arabia working as an English teacher from November 2005 to November 2006 and April 2008 to April 2009. He was there on a work visa, the statement said.
In 2015, he obtained an Umra visa, which covers pilgrimages for Muslims, through an approved travel agent and was in the kingdom from 3 to 8 March.
During his time in Saudi Arabia, Khalid Masood did not appear on the security services' radar and does not have a criminal record in the Kingdom of Saudi Arabia.
The people of Birmingham are out on the streets this evening holding a peace vigil.
Fawn Goodwin, 20, who is from the city, helped organise the event.
"It's really important that we show solidarity with the people who are affected by it, but also that we are anti-racist and that's the main reason why I'm here," she told the BBC.
"I don't want the attack that happened to reflect badly on the Muslim community. I think it's really important that we all stand together."
Stuart Knight was in the same class as Masood at Huntley's Secondary School for Boys in Tunbridge Wells, Kent, nearly 40 years ago.
Mr Knight said Masood, who he knew as Adrian, was a likeable lad and completely different from the deadly attacker he became.
He was a really nice chap. He was always fun; always having a laugh with the lads; a great sportsman; and I haven't got a bad word to say about him, which is probably what a lot of people don't really want to hear. They want to hear bad things about him but I can't give you that because he was genuinely a nice guy and I was upset today to think that he would have turned the way he has and upset to think what he's done to these poor families. It was just so out of character for the guy that I knew nearly 40 years ago."
Qari Asim, Imam at Leeds Mosque, has been telling the BBC how hundreds of thousands of Muslims across the country have been saying "special prayers" today.
"Muslims are united in grief, in sadness and in shock with the rest of the community in Britain," he said.
He said there was a "natural anxiety" following the attack but praised the tone of the response from the police and the prime minister, who referred to a "perversion of Islam".
Cardinal Vincent Nichols, the Archbishop of Westminster, who shared a platform with the Imam at a special service earlier today, said it had been "a privilege to stand alongside the major faiths of this country".
He called for people to resist any instinct for targeting the Muslim community.
"If we start making enemies out of people who want to be our friends then we are doing the terrorists' work for them," he said.
Tom Wilson, of the Henry Jackson Society think tank, tells the BBC he thought it "very unlikely" that Masood had acted alone.
Even in a single-handed attack, they are usually still part of a wider network or have communicated with them online, he says, adding that only 10% of cases his group has looked at involved "lone wolves".
He says Masood, who was 52, did not fit the stereotype of a terrorist - the average would be in his early 20s.
The crude method of attack, which bore similarities to attacks in Nice and Berlin, suggested Masood did have a connection to the so-called Islamic State group, he goes on to say.
The group's message has been to use whatever tools you have available to you, whether a knife or a car, says Mr Wilson.
In contrast, al-Qaeda put an emphasis on aviation bomb plots, he points out.
A candlelit vigil is about to begin in Cardiff to pay tribute to the victims of the attack.
Similar but on a smaller scale to the one held in London, the vigil will be held outside the Senedd in Cardiff Bay from 17:30 GMT.
Read more on this story here.
Khalid Masood spent some time working in Saudi Arabia, the BBC has confirmed. This is understood to have been around 2008.
Bob and Christine Carney were neighbours in Clapham of Leslie Rhodes, 75, the fourth victim of Westminster attacker Khalid Masood.
They were with him in hospital and Christine said: "We were just holding his hand, kissing him, telling him we loved him. He would have hated that, us doing that to him...we just loved him. He was a very good man, very helpful... Argumentative sometimes but we loved him anyway."
Bob added that Mr Rhodes "wouldn't ask anything for anything... if he found a phone on the floor he'd take it to the police station."
Steffan Harries knows Khalid Masood's mother and stepfather, Janet and Philip Ajao, who live in Carmarthenshire.
He says: "At first it was a great shock but as the day's gone on I think there's a great feeling of sympathy amongst the neighbourhood and the surrounding area towards Mr and Mrs Ajao.
"They haven't been, from what I understand, in any sort of contact with their son for well over 20 years. And at the end of the day, when it comes to terrorism, unfortunately nobody can be responsible for the action of their children."
St. Mary's Hospital in Paddington, which has treated eight people injured in Wednesday's attack, has sent three patients home.
A spokesperson from Imperial College Healthcare NHS Trust said "we are continuing to treat five patients".
One of the largest mosques in Birmingham, the Green Lane Masjid, has condemned Wednesday's attack. It called it a "sick and depraved act of terrorism".
"Islam, along with other religions, exalts the sanctity of human life. There is no justification for such a barbaric act on innocent people.
"Our response to this incident will only strengthen our ongoing work in exposing deviant extremist ideologies and to ensure that we safeguard vulnerable individuals susceptible to radicalisation and help recognise the real threat of terrorism in whatever form it manifests."
Travis Frain was hit by the attacker's car when he was walking over Westminster Bridge and went over its bonnet.
The 19-year-old from Darwen, Lancashire met Prince Charles during his visit to King's College Hospital.
He has a fractured leg and left arm, cuts to his thigh and two broken fingers.
Khalid Masood stayed at the Preston Park Hotel in Brighton before he travelled to Westminster to launch his attack.
The hotel's manager, Sabeur Tuomi, said he was "joking and smiling" and "checked out peacefully".
The boyfriend of Romanian Andreea Cristea, who fell into the Thames in a terror attack, was going to propose.
London Mayor Sadiq Khan is to scale back visits to European capitals next week in light of the Westminster attack.
Berlin, Madrid and Warsaw are no longer on the itinerary.
A spokesman for the mayor said: "The mayor will proceed with visits to Brussels and Paris.
"They are two cities with a very close relationship with London and, with Article 50 due to be triggered next week, he will be making a keynote speech and attending a series of important meetings with key politicians and officials, during which both Brexit and security issues will be discussed."
Prince Charles has praised the efforts of staff at King's College Hospital in London.
During his visit to victims of the attack, the Prince of Wales told the staff: "Thank you for all your marvellous efforts.
"How you do it, I don't know."
He then hailed their team work and joked: "As long as you're still talking to each other."
Chief Rabbi Ephraim Mirvis told the vigil of faith leaders outside Westminster Abbey that people of all beliefs are united in their grief.
"We stand here together, leaders of Christianity, Islam and Judaism. We have come here in friendship on behalf of our communities.
"We extend our condolences to the families of those murdered. We pray for those who have been injured...and we proclaim: 'No person and no event will drive a wedge between us. Together we will prevail.'"
He was speaking alongside Justin Welby, the Archbishop of Canterbury, Sheikh Ezzat Khalifa, Sheikh Mohammad al Hilli, and Cardinal Vincent Nichols, the Archbishop of Westminster.
Leslie Rhodes was from Clapham, south London, not Streatham as first reported, the Met has confirmed.
The 75-year-old retired window cleaner died in hospital last night after being injured on Westminster Bridge.
Six of the people injured in the attack are in a critical condition in hospital.
The Met Police say two of these have life-threatening injuries.
At least 50 people were hurt in Wednesday's incident when Masood drove his car into pedestrians on Westminster Bridge and crashed into railings outside the Houses of Parliament.
He then got out of the car and stabbed PC Palmer before being shot dead.
The acting head of the Metropolitan Police has referred to the attack in Westminster while addressing new recruits at a passing out parade held at Hendon.
"This has been an awful week for London and for the policing family you are joining," Craig Mackey said.
He said PC Keith Palmer "died protecting Parliament and our democracy".
"At moments like this, rare though they are, it is natural to be afraid and to despair at the inhuman violence we have seen. But it is at moments like these that you truly appreciate the strength of the policing family."
The image released by the police is reportedly from the attacker's driving licence.
Khalid Masood was named as the man responsible for the Westminster attack yesterday.
He has previously been known by a number of aliases including Adrian Elms and Adrian Russell Ajao.
The Archbishop of Canterbury has led faith leaders in a minute's silence outside Westminster Abbey.