A series of four explosions occurs on London's transport system killing 56 people including four alleged suicide bombers and injuring over 700 others.

Four terrorist bombings, occurring exactly two weeks after the similar July 7 bombings, target London's public transportation system. All four bombs fail to detonate and all four suspected suicide bombers are captured and later convicted and imprisoned for long terms.

Jean Charles de Menezes is killed by police as the hunt begins for the London Bombers responsible for the 7 July 2005 London bombings and the 21 July 2005 London bombings.