The first pictures of the UK parliament attacker have emerged as he is seen being treated for injury on a stretcher.

The first pictures of the UK parliament attacker have emerged as he is seen being treated for injury on a stretcher, the British-based Daily Mail reported.

Four people, including the assailant himself, have been reportedly killed in an attack that took place outside the Houses of Parliament in London on Wednesday and dozens have been injured.

British police shot a suspected attacker after an officer was stabbed in what police said was a “terrorist” incident.

The building in the heart of the British capital was immediately sealed off and MPs and staff ordered to remain inside.