Spain Train Bombings Fast Facts

Here's a look at the March 2004 bombings of commuter trains in Spain, which killed 193 people and injured more than 1,800. The bombings are the deadliest terrorist attack in Spain's history.

On March 11, 2004, 10 bombs in backpacks and other small bags exploded on four commuter trains. One bomb did not explode and was defused. The police did controlled explosions of three other bombs.

ETA, a Basque group labeled a terrorist organization by the United States and the European Union, and al Qaeda were the original suspects cited by the Spanish government.

Through anonymous phone calls to Basque media outlets, ETA vehemently denied involvement.

Islamic militants who were based in Spain but inspired by al Qaeda were designated later as the prime suspects.

March 11, 2004 - Coordinated attacks including 10 bombs on four commuter trains at three different stations kill 191 people and wound more than 1,800.

March 13, 2004 - An al Qaeda claim of responsibility is made via video tape by a man speaking in Arabic with a Moroccan accent.