Two members of the public have died and another three people were injured in a stabbing attack at London Bridge, the Met Police’s commissioner has said.

Cressida Dick told a press conference the stabbing attack, which has been declared a terrorist incident, began at an event at Fishmonger’s Hall.

Within five minutes of being called officers confronted the suspect – who was shot dead by police – she said.

The suspect was wearing what is thought to have been a hoax explosive device.

The BBC has spoken to people who were inside Fishmonger’s Hall, where a criminal justice event was taking place.

Dozens of people were in attendance, including students from Cambridge University and former prisoners.

The university said it was “gravely concerned” about reports of its students and staff being caught up in the attack and was urgently seeking further information.

Ms Dick said police were working at “full tilt” to understand what had happened and whether anyone else was involved.

Officers were still working to identify the dead, she said.

Details of what happened are still emerging, but videos on social media appear to show passers-by holding down a man on London Bridge.

Another man in a suit could be seen running from him, having apparently retrieved a large knife.

Footage then shows an officer arriving, seeming to indicate to the group to move, and firing a shot.

The actions of the public have been widely praised, including by Prime Minister Boris Johnson, Labour leader Jeremy Corbyn and Ms Dick, who said they had shown “extreme courage”.

She added: “Ours is a great city because we embrace each other’s differences.

“We must emerge stronger still from this tragedy. In doing that we will ensure that the few who seek to divide us will never, ever succeed.”