More than one person has died in a terrorist incident in central London which is still ongoing, the Metropolitan Police has said.
Police and ambulances were alerted to reports a van hit people on London Bridge shortly after 22:00 BST.
Armed officers went to nearby Borough Market where they were responding to reports of stabbings in the area which is known for its restaurants and bars.

London Ambulance Service said at least 20 people have been taken to hospital.
A number of people were treated at the scene for less serious injuries.

Prime Minister Theresa May described the incidents as "dreadful events" and will chair a meeting of the government's Cobra emergency committee later.
The Metropolitan Police tweeted: "At 0025hrs 4/6/17 the incidents at #LondonBridge & #BoroughMarket were declared as terrorist incidents."

London Mayor Sadiq Khan said it was an "horrific terrorist attack".

He added: "The situation is still unfolding and I would ask all Londoners and visitors to our city to remain calm and vigilant.
"We don't yet know the full details, but this was a deliberate and cowardly attack on innocent Londoners and visitors to our city enjoying their Saturday night. I condemn it in the strongest possible terms."

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

Gunshots were later heard in the area while one social media user has posted a photograph appearing to show one of the attackers, with what seemed to be canisters strapped to his body lying on the ground.

The attack comes almost two weeks after 22 people died in a suicide bombing at a concert in Manchester.
In March, five people died in London when a car was driven at pedestrians on Westminster Bridge and a police officer was stabbed outside Parliament.

READ MORE HERE: London attack: Fatalities after vehicle and stabbing incidents

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PHOTOS-CREDIT: UK-BBC