The 2004 Madrid train bombings (also known in Spain as 11-M) were nearly simultaneous, coordinated bombings against the Cercanías commuter train system of Madrid, Spain, on the morning of 11 March 2004three days before Spain's general elections and two and a half years after the September 11 attacks in the United States. The explosions killed 191 people and wounded 1,800. It was concluded that the bombs were carried on the trains hidden in backpacks, While many went off three were found later that did not detonate. The official investigation by the Spanish judiciary found that the attacks were directed by an al-Qaeda-inspired terrorist cell. ETA and al Qaeda were the original suspects cited by the Spanish government.