MADRID, Spain - A series of bombs hidden in backpacks exploded in quick succession Thursday, blowing apart four commuter trains and killing at least 192 people and wounding more than 1,400. Spain at first blamed Basque separatists but a shadowy group claimed responsibility in the name of al-Qaida for the worst terrorist attack in Spanish history.
Panicked rush-hour commuters trampled on each other, abandoning their bags and shoes, after two of the bombs went off in one train in the Atocha station in the heart of Madrid. Train cars were turned into twisted wrecks, and platforms were strewn with corpses. Cell phones rang unanswered on the bodies of the dead as frantic relatives tried to call them.
"March 11, 2004, now holds its place in the history of infamy," Prime Minister Jose Maria Aznar said.
The bombing came three days ahead of Spain's general election on Sunday. A major campaign issue was how to deal with ETA, the Basque militant group that is seeking greater autonomy.
Campaigning for the election was called off and three days of mourning were declared.
The bombings occurred exactly 21Ú2 years after the Sept. 11, 2001, terrorist attacks in the United States, and was Europe's worst since the 1988 bombing of a Pan Am jetliner over Lockerbie, Scotland, that killed 270 people.
The 10 backpack bombs exploded in a 15-minute span, starting about 7:39 a.m., on trains along nine miles of commuter line from Santa Eugenia to the Atocha terminal, a bustling hub for subway, commuter and long-distance trains just south of the famed Prado Museum. Police also found and detonated three other bombs.
"An act of barbaric terrorism has engulfed Spain with profound pain, repulsion and anger," King Juan Carlos said on national television.
Worst hit was a double-decker train at El Pozo station, where two bombs killed 70 people, fire department inspector Juan Redondo said. One corpse was blown onto the roof.
At the Santa Eugenia station, "there was one carriage totally blown apart. People were scattered all over the platforms. I saw legs and arms. I won't forget this ever. I've seen horror," said Enrique Sanchez, an ambulance worker.
Forty coroners worked to identify remains, the national news agency Efe said, and a steady stream of taxis carried relatives to a sprawling convention center that was turned into a makeshift morgue.
Three days of national mourning were declared and thousands of people took part in spontaneous anti-terror rallies across the country Thursday. The government called for nationwide anti-ETA demonstrations tonight.
Who carried out the highly coordinated attack was a mystery. The government put the Basque separatist group ETA at the top of its list of suspects, although a shadowy group claimed responsibility in the name of al-Qaida.
The Arabic newspaper Al-Quds al-Arabi said it had received a claim of responsibility issued in the name of al-Qaida. The e-mail claim, signed by the shadowy Brigade of Abu Hafs al-Masri, was received at the newspaper's London offices and said the brigade's "death squad" had penetrated "one of the pillars of the crusade alliance, Spain."
"This is part of settling old accounts with Spain, the crusader, and America's ally in its war against Islam," the claim said.
Spain backed the war on Iraq despite domestic opposition, and al-Qaida-linked terrorists have been captured in Spain or were believed to have operated from there.