LONDON - Britain's Foreign Office Minister Tobias Ellwood tried to save the life of the policeman who was stabbed just inside the gates of the parliamentary estate, reported British media.

The Tory MP attempted to give the officer mouth-to-mouth resuscitation and stemmed the blood flow by applying pressure to multiple stab wounds, said the Telegraph which quoted a source close to the minister.

The report added that Mr Ellwood, who is a former soldier, remained with the injured policeman while he waited for the air ambulance to arrive. He was later seen with bloodied hands talking to officers close to the incident before returning to the Foreign Office.

Mr Ellwood has been Parliamentary Under-Secretary at the Foreign Office since July 2014, covering the Middle East and Africa brief.