Police arrested a Spaniard in connection the Madrid terror bombings (search), accusing him Thursday of transporting explosives used in the attack.

The suspect, whose name was not released, was arrested in the Canary Island of Las Palmas (search) where he was staying with some relatives, authorities said.

Eleven other Spaniards have also been arrested and charged in relation to the theft or transport of the explosives used in the March 11 attacks, which killed 190 people and wounded more than 2,000.

Authorities have blamed Islamic militants with possible links to Al Qaeda (search) with carrying out the bombings.

Thirty people in total have been charged so far either with mass murder or collaborating with or belonging to a terrorist organization. Fifteen remain in custody.