Our reporter Ben Perrin is in Stafford, where police continue to search a property where it's thought Usman Khan lived.

New images show blue forensic screens or tents at the entrance to the property, while a police cordon remains in place.

Image source, Reuters

Prime Minister Boris Johnson has arrived at the scene of the attack on London Bridge which killed two people on Friday afternoon.

Metropolitan Police Commissioner Cressida Dick and the commissioner of the City of London Police, Ian Dyson, have also been pictured on the bridge.

The Mayor of London Sadiq Khan is expected to visit the south side of the bridge later this afternoon.

Image source, PA Media

In her full statement, the Queen expresses her "enduring thanks" to the emergency services, and praised the bravery of bystanders who intervened during the attack.

Her statement reads: "Prince Philip and I have been saddened to hear of the terror attacks at London Bridge.

"We send our thoughts, prayers and deepest sympathies to all those who have lost loved ones and who have been affected by yesterday's terrible violence."

"I express my enduring thanks to the police and emergency services, as well as the brave individuals who put their own lives at risk to selflessly help and protect others."

The Queen has sent "thoughts, prayers and deepest sympathies to all those who have lost loved ones" in the London Bridge attack and praised the "brave individuals who put their own lives at risk to selflessly help and protect others".

Image source, AFP

• There is still a large police cordon around London Bridge this morning.
• Buses and vehicles which were abandoned on the bridge are yet to be removed.
• In the early hours of this morning the suspect was named by the Metropolitan Police as 28-year-old Usman Khan.
• Khan was known to authorities after being jailed in 2012 for his part in an al-Qaeda plot to bomb the London Stock Exchange.
• He was released on licence in December 2018 and is believed to have been at a Cambridge University conference on prisoner rehabilitation in Fishmonger's Hall - where the attack is understood to have started.
• More footage has emerged of members of the public wrestling with the attacker on London Bridge and then Khan being shot dead by police.
• Two people are known to have died in the attack and another three were taken to hospital for their injuries.
• Police patrols in London have been stepped up
• A property in Stafford is being searched by officers from the Metropolitan and Staffordshire Police forces.
• In response to the London Bridge attack, some election campaigning has been put on hold.

Residents living near a block of flats in Stafford where Usman Khan is thought to have lived, spoke of their shock as a police search continued at the property.

Retired police officer Justin Lightfoot, who lives in a nearby street, said he instantly recognised Khan when a friend showed him a mugshot of the 28-year-old in a media report on Saturday morning.

Mr Lightfoot, who runs a gardening business, says he had never seen Khan walking with anyone else.

Another resident, whose house overlooks the flats, said: "I've certainly seen police there before, but what for I'm not sure.

"I haven't seen the man who lived there for at least a week or so."

Usman Khan was one of three convicted terrorists who argued in 2013 that they should not have been given indeterminate sentences for public protection (IPP) which could have kept them in prison beyond their original minimum term.

The Court of Appeal said the IPP sentences should be replaced with fixed terms and extended licences.

Usman Khan was ordered to serve at least eight years of his new 16-year sentence, and all three men were told they would be subject to extended licences of five years beyond their sentences.

Image source, PA Media

Forensic officers have been seen clearing items from the floor at the junction around Cannon Street, north of London Bridge on Saturday morning.

Officers wearing overalls carried items in plastic bags out of a blue forensics tent.

A member of the public laid two bunches of flowers at a lamppost on King William Street.

Today Programme
BBC Radio 4

One eyewitness, Craig Heathcote has been telling BBC Radio 4’s Today programme what he saw yesterday afternoon.

He was walking across London Bridge during his lunch break when a passer-by shouted there was someone with a knife. He then saw a “big scuffle” happening across the road.

Mr Heathcote says he could hear screaming on the bridge and could see something serious was unfolding on the other side.

He says he saw and heard the gunshots fired by officers, adding: “It was only really once they shot him that I realised this was a very bad place to be and got much further back. I very quickly started walking as far away as I could."

He adds: “It was just absolute chaos.”

Steve Hartshorn, the firearms lead at the Police Federation for England and Wales - the police union - says officers had a difficult decision to make in stopping the attacker.

He says: "They were confronted by what they thought was a person-borne explosive device, which obviously varies their risk-assessment greatly and that they have to take perhaps more decisive action because of the proximity of members of the public and indeed themselves.

"You know, they were all very brave yesterday, they all ran forward - members of the public and police alike. That decision to pull the trigger is never taken lightly."

Detectives investigating yesterday's attack have repeated their appeal for witnesses to contact them.

The Met Police said its officers would especially like to speak to anyone who was at Fishmongers’ Hall, London Bridge yesterday.

Anyone with information can contact the investigation team, in confidence, on 0800 789 321.

Reacting to the news that Usman Khan was a former prisoner convicted of terrorism charges is Chris Phillips, an ex-head of the National Counter Terrorism Security Office.

"The criminal justice system needs to look at itself," he says.

"We're letting people out of prison, we're convicting people for very, very serious offences and then they are releasing them back into society when they are still radicalised.

"So how on earth can we ever ask our police services and our security services to keep us safe?

"We're playing Russian roulette with people's lives, letting convicted, known, radicalised criminals walk about our streets."

BBC Breakfast

Earlier this month, the UK threat level was lowered from severe to substantial - reflecting an assessment from the Joint Terrorism Analysis Centre (JTAC) that an attack was likely rather than highly likely because of a relative decline in activity, writes BBC Security correspondent Gordon Corera.

Mr Khan defended that review, adding there “wasn’t a complacency brought about by the change in the threat level two weeks ago".

Speaking to BBC Breakfast he says it was “quite normal” for JTAC to regularly review the threat levels.

“There’s nothing from the attack yesterday to give JTAC a reason to increase the threat levels.

"But the police, the security services, all of us will continue to make sure we are vigilant. None of us is complacent,” he adds.

BBC Breakfast

London Mayor Sadiq Khan has been talking about the aftermath of the attack this morning.

He tells BBC Breakfast there will be more police officers - many of whom will be armed - in London over the next few days.

He says the increased police presence will be to “reassure” the public, not because there’s an additional or heightened threat.

Mr Khan said that, according to the police, it appears that the man was acting on his own and there appears to be no related further threat.

An address in a three-storey block of flats in Wolverhampton Road, Stafford, is this morning being searched by police investigating the London Bridge attack.

Here are the photos we have so far:

Image source, SnapperSK

Image source, SnapperSK

Image source, SnapperSK

Image source, SnapperSK

UK flags are to be flown at half mast for London Bridge attack victims, the government says.

Flags on UK government buildings will fly at half-mast today as a mark of respect to those who died and others that were affected by the attack.

Other organisations and local authorities may follow suit.

General election campaigning will resume today, with some events cancelled, the government says.

Today Programme
BBC Radio 4

Mayor of London Sadiq Khan says: "The key thing is we need to support the police and security service.

Speaking on BBC Radio 4's Today programme, he said: "And of course politicians can't use trite words and trite language after a terror attack. The key thing is to remind ourselves of two things.

"First is yesterday we saw the very best of Londoners, but also, secondly, we've got to make sure the right lessons are learnt.

"You can't disaggregate terrorism and security from cuts made to resources of the police, of probation, the tools that judges have. It's all linked."

Today Programme
BBC Radio 4

Returning to the security minister, Brandon Lewis, who defends the government's funding for police.

Speaking on BBC Radio 4's Today programme, he says: "Police funding for counter-terrorism policing has consistently increased since 2015.

"As have counter-terrorism police numbers."

He adds: "We will make sure that police has got the resource that it needs.

"The Metropolitan Police is the best-funded per capita police force in the country and we will continue to ensure they have the resources they need to keep us safe."

The Parole Board said it had no involvement in the release of London Bridge attacker Usman Khan from jail.

In a statement, it said: "We have every sympathy with those affected by the dreadful events that happened in London Bridge yesterday.

"Given the seriousness of this attack, it is understandable that there is speculation about the attacker's release from prison.

"The Parole Board can confirm it had no involvement with the release of the individual identified as the attacker, who appears to have been released automatically on licence (as required by law), without ever being referred to the Board."