Serbia extradited a key suspect in the Madrid train bombings to Spain today, the Spanish government said.
Abdelmajid Bouchar, a 22-year-old Moroccan, arrived at Getafe air base, near Madrid, guarded by four Interpol agents, the Interior Ministry said in a statement.
He faces trial in Spain for the murder of 191 people killed in the March 11, 2004, train bombings as well as 1,500 attempted murders and belonging to an Islamist terrorist organisation, the statement said.
Spain requested Bouchar's extradition in August after he was detained on June 23 on a train travelling to Belgrade and held for a breach of immigration law and for carrying false identification papers.
Serbian officials confirmed his identity in mid-August after checks with Interpol and Spanish police.
Bouchar had been wanted on an international arrest warrant for more than a year on suspicion of involvement in the attacks.
He escaped from a suburban Madrid apartment three weeks after the March 11 bombings as police closed in on a group of prime suspects, according to the Spanish judge leading the investigation.
Bouchar, a competitive distance runner, was taking out the rubbish when he noticed the police, yelled a warning to the others and fled, the judge said.
When police surrounded the apartment, seven suspects inside blew themselves up with a batch of the same stolen dynamite used in the train bombings, investigators said. The suicide blast also killed a police special agent.