Twelve people have been arrested after the London terror attack which left seven people dead and 48 injured.
The arrests in Barking, east London, followed a raid by police at a flat owned by one of the three attackers.
A white van hit pedestrians on London Bridge at about 22:00 BST on Saturday, then three men got out and stabbed people in nearby Borough Market. They were shot dead by police minutes later.
Condemning the attack, Theresa May said it was “time to say enough is enough”.
Controlled explosions were also carried out at the flat in Barking on Sunday morning.
It is the third terror attack in the UK in three months, following the car and knife attack in Westminster in March, which left five people dead, and the Manchester bombing less than two weeks ago, in which 22 people were killed.
Most political parties have suspended national general election campaigning, but the prime minister said full campaigning would resume on Monday and the general election would go ahead as planned on Thursday.
Eyewitnesses to the attack described seeing a van travelling at high speed along London Bridge, hitting pedestrians, before crashing close to the Barrowboy and Banker pub.
Three men then got out wearing fake bomb vests and began attacking people in the nearby market – an area known for its bars and restaurants, which were busy on a warm summer evening.
Four police officers who tried to stop the attack were among those injured, two of them seriously.
One of them was an off-duty officer and amateur rugby player who tackled one of the terrorists, suffering stab wounds.
Another, a British Transport Police officer who joined the force less than two years ago, took on the attackers armed with only his baton.
Metropolitan Police Commissioner Cressida Dick praised their “extraordinary bravery”.
The three suspects were eventually shot dead within eight minutes of the first 999 call being received.
Among the main developments:
*More than 80 medics were sent to the scene. The injured, some of them in critical condition, are being treated in five London hospitals.
*Two Australian citizens “have been directly impacted,” says the country’s Prime Minister Malcolm Turnbull.
*Four French citizens have been injured, one seriously, according to foreign minister Jean-Yves Le Drian.
BBC reporter Holly Jones, who was on the bridge, said the van was “probably travelling at about 50 miles an hour” and hit “five or six people”.
According to another witness, Eric, the men inside jumped out once the van crashed and “ran towards the people that they nearly ran over”.
“[Then] they literally just started kicking them, punching them, they took out knives… it was a rampage really,” he said.
One man, Gerard, told the BBC he saw a woman being stabbed “10 or 15 times” by men shouting “This is for Allah”.
Steven Gibbs, who was drinking in a pub metres from the scene, told the BBC: “A black cab drove past and the driver shouted, ‘Terrorist attack, run!’
“I stood up to take a look and then all of a sudden there were gunshots. Lots of people were screaming.”
Hundreds of people were left stranded after being unable to return to their homes and hotels.
As with the Manchester attack, there were stories of Londoners coming to each other’s aide, offering free taxi rides, free accommodation or just the opportunity to call friends and family – many using the hashtag on social media
#sofaforLondon.
