Seven people have been killed and almost 50 people injured in a “rampage” in central London, the third terrorist attack to hit the UK in less than three months.
Three attackers were shot dead by police in the attack on London Bridge and Borough Market. Police said they believed there were no more than three attackers.
A white transit van ploughed into a crowd of people on the bridge at speed shortly after 10pm. The three men then stabbed people with 12-inch knives at nearby Borough Market, with a transport police officer among those injured.
The London Ambulance Service said 48 people had been taken to five hospitals across the capital and a number of other people were treated at the scene.
The major parties have suspended their national campaigning for the General Election in the wake of the attack.
Prime Minister Theresa May, who was understood to be at her Maidenhead constituency when she was alerted to the news, will chair a Cobra meeting first thing on Sunday morning.
As dawn broke over the capital, a large area on the south bank of the River Thames remained cordoned off and police told people to avoid the area, leaving tourists and revellers struggling to get home.