Four people are dead, including a London police officer who was stabbed, after a terror attack that injured more than 20 people after a car drove through a bridge outside the Parliament building
We are unsure if there was 1 or 2 attackers, but around the same time, a knife-wielding attacker stabbed a police officer and was shot on the grounds outside Britain's Parliament.
There has been no report yet as if this is an Isis attack.