London Transit Bombings
July 7, 2005
London subway and bus bombings killed 52 people (plus the 4 bombers) and injured more than 700.
Bomb blasts hit the London transit system — three on subway, or 'Tube,' trains, one on a double-decker bus.
The three train bombs exploded within 50 seconds of one another at about 8:50 a.m. local time.
The bus explosion occurred almost an hour later.
Three of the four bombers were British nationals of Pakistani descent from West Yorkshire.
July 21, 2005
Attacks on three London undergrounds and one bus but bombs failed to explode.
Police mistakenly shoot dead Jean Charles de Menezes, a Brazilian electrician they believed to be a suspected bomber.
Abu Hafs al-Masri Brigades, a group claiming association with Al Qaeda, claimed responsibility in postings on the Internet.
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