Police have named the officer who was killed by a knifeman terrorist in London today and revealed the death toll in the attack has risen to five.
Keith Palmer, 48, was stabbed to death outside Parliament by the attacker who brought carnage to London, mowing down pedestrians on Westminster Bridge, killing three and injuring around 40 more.
A 4x4 drove along the pavement on the crowded bridge, knocking down and seriously injuring pedestrians before crashing into a fence below Big Ben.
The killer, described by witnesses as 'middle-aged and Asian', then managed to break into the grounds of Parliament, where he fatally stabbed Mr Palmer - who had 15 years service with the police - with two knives.
The attacker - who was shot at least twice by armed officers guarding the building - died after he was taken to hospital while Mr Palmer - a husband and father - died at the scene.
Speaking after the attack, Prime Minister Theresa May tonight vowed Britain would 'never give in to terror' and 'defeat hate and evil' after she blasted the 'sick and depraved' attack in Westminster.
She added the 'forces of evil would never drive Britain apart' and praised police and security staff who 'ran towards danger even as they encouraged others to move away'.
Three other police officers were injured, two of whom are in 'serious condition'.
Prime Minister Theresa May was bundled into her car by a plain-clothes police officer and driven quickly from the scene as the attack unfolded. She chaired a meeting of the Government's emergency Cobra Committee tonight.
Scotland Yard said the attack, which comes a year to the day after the atrocities in Brussels, is being treated 'as a terrorist incident'.
UPDATED ON THURSDAY, MARCH 2017, 9:28PM: