Images from the scene of the terror attack in central London that killed six people.
Police responded to reports of a van hitting several people on London Bridge.
The surrounding area was quickly closed to the public.
Armed officers were on the scene within minutes.
Eyewitness reports said the van mounted the pavement of the bridge.
The white van, in the centre of this photo, is believed to have been used in the attack on London Bridge.
One social media user published a picture of a man on the ground with what appeared to be canisters strapped to his body. These explosive vests were later confirmed to be hoaxes.
Police told people to be "calm, alert and vigilant".
Injured people were treated at the scene.
UK Prime Minister Theresa May said it was being treated as a "potential act of terrorism".