London attack: Four dead in Westminster terror attack
Three people have died and at least 40 have been injured after an attacker drove a car along a pavement in Westminster, stabbed a policeman and was shot dead by police in the grounds of Parliament.
The dead officer was named as PC Keith Palmer, 48, a husband and father.
PM Theresa May said the attack on Wednesday was “sick and depraved” and struck at values of liberty, democracy and freedom of speech.
The attacker has not been named.