'We will not have our democracy undermined by any terrorism' - @J_Donaldson_MP on the terror at Westminster yesterday

Four people were killed and 40 injured after a terror attack near the Houses of Parliament in London yesterday. The single attacker first drove a car over Westminster Bridge ploughing into people killing at least two pedestrians. He then crashed the car before running to Parliament and stabbing and killing a policeman who confronted him. The attacker was shot dead by armed officers. The officer who died was PC Keith Palmer, 48, who had 15 years' service and was a husband and a father. Police confirmed this morning that seven arrests have been made in raids following the attack. A number of Northern Ireland MPs were at the Houses of Commons when the attack took place. Among them Sir Jeffrey Donaldson who joined Stephen this morning.