The Prime Minister paid a private visit to King's College Hospital in south London - which has been caring for 14 patients - to meet some of the victims and staff who have been treating them.
"It is time to say, enough is enough", she said. They has also responded to an incident in another area of London, Vauxhaul. "My thoughts go to the victims and their loved ones". "Thank you to the emergency services".
The spokesman said, "Searches of a number of addresses in Barking are continuing".
The Metropolitan Police Federation, which represents officers in London, said there were "barely words to describe" the bravery of all officers, armed and unarmed, who responded to last night's incident.
"Our initial assessment is in the region of 50 rounds, in the region of 50 bullets were fired by those eight officers".
Khan, the first Muslim mayor of a major European city, has attracted ire from the Trump family before. The men were wearing what appeared to be vests with explosives, but Prime Minister Theresa May says they weren't real and were just meant to cause panic.
The British Transport Police officer who was brutally stabbed in the head, face and leg took on the attackers with a baton.
Police have been praised for their fast response to the incident and Stembridge called for more police presence. Witness Elsbeth Smedley told CNN that a man ran into Elliot restaurant in Borough Market, and stabbed two people before running out.More news: Vote Labour to stop independence referendum - Gordon Brown
More news: Former Michigan State star Draymond Green: I cost Warriors 2016 NBA Finals
More news: London Bridge Terror Attack Aftermath Shows Chaos
A van mowed down pedestrians on the bridge before its occupants got out and started stabbing people.
Damien Pettit, who lives in the same block in east London, was shown a photograph of one of the attackers.
At least four police vans were stationed behind a cordon outside the Elizabeth Fry flats in King's Road, where investigators believe one of the attackers may have lived.
Police received the first call of reports of a vehicle hitting pedestrians on London Bridge at 10:08 p.m. (2108 GMT).
An eyewitness tells Sky News he saw people who seemed to have been run over and people being placed in an ambulance covered in blankets.
"You will also see increased physical measures in order to keep the public safe on London's bridges", Rowley said.