An eyewitness to today's terror attacks in Westminster has told talkRADIO he saw people "flying through the air" as a 4x4 ploughed into them.
Four people have been killed and 20 injured after a car drove into pedestrians on Westminster Bridge, and a man carrying a knife attacked police outside Parliament. The death toll includes the knife-wielding attacker and a police officer.
The witnesses told our reported Alex Dibble that he saw the car "throwing people in the air" and initially thought it was an accident, before the true nature of the situation dawned on him.
Listen to the interview above.