Alberto Machain Beraza, who is the one of the suspects, is thought to have been involved in recent Eta bombings, including an attack in Majorca. Eta wants an independent Basque homeland.
The other two suspects have been identified as Aitzol Etxaburu and Andoni Sarasola, and are thought to be part of Eta's military wing, that has provided arms and explosives for terrorist attacks in Spain.
Alberto Machain Beraza was included in six Eta suspects on a wanted list issued by the Spanish government following the bomb attacks in July.
