A police officer has been stabbed in the Houses of Parliament in London.
Commons Leader David Lidington has told MPs: “The alleged assailant was shot by armed police” following a “serious” incident.
Staff inside the Houses of Parliament have been told to stay inside their offices.
Laura Kuenssberg from the BBC said police told her someone had been shot and other MPs said they heard three or four gunshots.
A Tweet by Tom Peck political editor for the Independent, said: “There was a loud bang. Screams. Commotion. Then the sound of gunshots. Armed police everywhere.”
Prime Minister Theresa May was reportedly seen being rushed into a car as gunfire shots were heard at Parliament during the incident.
A Downing Street source confirmed that Prime Minister Theresa May is safe OK.
Scotland Yard has said it was called to an alleged firearms incident on Westminster Bridge amid reports of several people injured.
Transport for London said Westminster underground station has been shut at the police’s request, and buses have had to be diverted.
Mr Lidington said: “It seems that a police officer has been stabbed, that the alleged assailant was shot by armed police. An air ambulance is currently attending the scene to remove the casualties. There are also reports of further violent incidents in the vicinity of the Palace of Westminster but I hope colleagues on all sides will appreciate that it’d be wrong of me to go into further details until we have confirmation from the police and from the House security authorities about what is going on.”
An eye witness, Radoslaw Sikorski has Tweeted: “A car on Westminster Bridge has just mowed down at least 5 people.”
London Ambulance Service Deputy Director of Operations Pauline Cranmer said:
“We were called at 2.40pm to Westminster Bridge to reports of an incident, with the first crew arriving within six minutes.
“We have sent a number of resources to the scene including ambulance crews, London’s Air Ambulance and our Hazardous Area Response Team.
“We are working closely with other members of the emergency services at the scene, with our priority being to ensure patients receive the medical help they need as quickly as possible.
“We have declared a major incident and our priority is to assess patients and ensure that they are treated and taken to hospital as soon as possible.
“As we are very busy dealing with this incident, we would ask the public to only call us in a genuine emergency.”