Mohammad Sidique Khan (20 October 1974 – 7 July 2005) was the oldest of the four Al Qaeda suicide bombers in the 7 July 2005 London bombings, in which bombs were exploded on three London Underground trains and one bus in central London suicide attacks, killing 56 people including the attackers and injuring over 700. He was believed to be the leader of the bombers. Khan bombed the Edgware Road train killing himself and six other people.