Six people have been killed in an attack in central London in which three assailants were shot dead by police, Scotland Yard has said.

A white van hit several pedestrians on London Bridge just after 22:00 BST.

Three men then left the vehicle and stabbed a number of people in Borough Market, south of the bridge, an area known for its restaurants and bars.

Armed officers confronted and shot the suspects within eight minutes.

London Ambulance Service said at least 30 people have been taken to hospital.

Metropolitan Police Assistant Commissioner Mark Rowley said: "The suspects were wearing what looked like explosive vests but these were later established to be hoaxes."

He said it was currently believed there were only three attackers involved.

The British Transport Police said one of its officers was seriously injured after being stabbed as he responded to the incident, but his condition was not said to be life-threatening.

Prime Minister Theresa May described the incidents as "dreadful events" and will chair a meeting of the government's Cobra emergency committee on Sunday.

London Mayor Sadiq Khan called it "a deliberate and cowardly attack on innocent Londoners".

Eyewitnesses told BBC home affairs correspondent Tom Symonds they saw people getting out of the van after the attack on the bridge and running towards Borough Market.