How the London Bridge and Borough Market attack unfolded
Three men have been shot dead by British officers after a vehicle and knife attack on London Bridge and the Borough Market, which left at least seven people dead.
There were a number of different reports in the immediate aftermath of the attack, with witnesses reporting bodies lying on the ground and victims having had their throats cut.
Here is how the attack unfolded.
What happened?
Just after 10:00pm on Saturday (local time), a vehicle struck pedestrians on London Bridge, according to London's Assistant Commissioner Mark Rowley.
The driver then drove from London Bridge to Borough Market, at which point the suspects left the vehicle.
A number of people were then stabbed, including an on-duty British Transport Police officer who was responding to the incident at London Bridge. He received serious, but not life-threatening, injuries.
It is at this point that armed officers confronted the three male suspects, who were shot and killed in Borough Market.
Mr Rowley said the suspects were confronted and shot by police within eight minutes of the first call.
Is it over?
Police have described the operation as "ongoing," adding that it was being led by London's Metropolitan Police force.
They are working closely with British Transport Police, City of London Police, the London Ambulance Service and the London Fire Brigade.
Police are also still advising the public to avoid the London Bridge and Borough Market area.
"This is to allow emergency services to deal with this incident," Assistant Commissioner Rowley said.
What's going to happen now?
Police said they were "reviewing and planning to strengthen our policing stance across London over the forthcoming days”.
"There will be additional police and officers deployed across the Capital," Assistant Commissioner Rowley said.
The public has been urged to remain vigilant and to alert police to anything suspicious.
So, is this a terrorism incident?
Police said they were treating the attack as a terrorist incident.
The investigation is being led by the Counter Terrorism Command, and police have asked for images or footage of the incident to be passed onto officers.
British Prime Minister Theresa May earlier saidthe incident was being treated as a potential act of terrorism.
She said the investigation was fast moving and expressed gratitude to the police and emergency services who were at the scene.