In pictures: London Bridge attackPublished4 June 2017Shareclose panelShare pageCopy linkAbout sharingImage source, PAImage caption, Police responded to reports of a van hitting several people on London Bridge.Image source, Getty ImagesImage caption, The surrounding area was quickly closed to the public.Image source, PAImage caption, Armed officers were on the scene within minutes.Image source, PAImage caption, Eyewitness reports said the van mounted the pavement of the bridge.Image source, H. AttaiImage caption, A white van is thought to have mounted the pavement, attackers are then thought to have descended on the busy Borough Market area.Image source, ReutersImage caption, Police locked down the Borough Market - known for its restaurants and bars - where several of the victims are thought to have been stabbed.Image source, Gabriele SciottoImage caption, 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.Image source, PAImage caption, Officers went into bars and told people to get on the floor while they secured the area.Image source, Dominic LipinskiImage caption, Police said seven people had been killed and three suspects shot dead.Image source, PAImage caption, Police told people to be "calm, alert and vigilant".Image source, PAImage caption, London Ambulance Service declared a major incident.Image source, AFP/GettyImage caption, Some injured people were treated at the scene - 48 people, some critical, are being treated in five hospitals.Image source, EPAImage caption, London Bridge station was closed shortly after the attack.Image source, Reuters Image caption, Facebook activated a safety check so people could let friends and family know they were safe.Image source, AFP/GettyImage caption, An emergency response helicopter landed on London Bridge.Image source, Getty ImagesImage caption, Prime Minister Theresa May said it was being treated as a "potential act of terrorism".Image source, ReutersImage caption, The area remains closed as police and forensics experts conduct their investigations.More on this storyLatest updates: London attackPublished3 June 2017Seven killed in London terror attackPublished4 June 2017