MADRID, July 19, 2008 (AFP) - One of the men acquitted earlier this week of involvement in the 2004 Madrid train bombings which killed 191 people will be deported to its native Syria Spanish media reported Saturday.

Basel Ghalyoun, 28, did not have a permit to live in Spain legally, public radio RNE and private radio Cadena Ser reported citing police sources.

Held in a temporary holding centre since his release from prison on Thursday, he would be sent back to Syria on Sunday, they added.

Ghalyoun, from the western Syrian city of Homs, was sentenced in October 2007 to 12 years in jail for belonging to a terrorist organisation.

But on Thursday Spain's Supreme Court overturned his conviction and that of three others among the 21 people convicted of involvement in the train bombings.

The court also upheld a lower court's acquittal of one of the alleged masterminds of the al-Qaeda inspired attacks, Rabei Ousmane Sayed Ahmed, also known as Mohammed the Egyptian.

The supreme court said Thursday there was not enough evidence to convict him as an organiser of the attack.

The early morning bombings on four packed commuter trains on March 11, 2004 were the deadliest terror attacks in the West since the September 11, 2001 strikes against the US.