Shots being fired outside the Houses of Parliament and the Palace of Westminster is reportedly in lockdown. Witnesses also said they saw people being treated for injuries, reports BBC.
According to Reuters, a least a dozen people have been injured on Westminster Bridge after large bangs were heard outside the British parliament.
A man with a knife has been seen within the confines of the Palace, eyewitnesses said, adding that he had been shot, reports Metro.
It is believed two people may have been shot outside the building and a police officer has been stabbed.
Scotland Yard said it was called to a firearms incident on Westminster Bridge amid reports of several people injured.
A car on Westminster Bridge is reported to have knocked down several people. A Reuters photographer said he had seen at least a dozen people injured.
Press Association reporter Laura Harding, who was in Westminster at the time of the incident, said: ‘Everyone has been evacuated into Central Lobby, including a group of schoolchildren and kitchen staff.
A car on Westminster Bridge has just mowed down at least 5 people. pic.twitter.com/tdCR9I0NgJ— Radosław Sikorski (@sikorskiradek) 22 марта 2017 г.