Police in Spain have arrested three suspected members of the Basque separatist group ETA.They were detained in the early hours of this morning on the orders of Judge Baltasar Garzon who is coordinating anti-terrorist operations. The arrests follow the bombing last week in the Basque region which killed a police officer, although those in custody are not thought to be linked with that incident. Two people – a man and a woman were picked up near the town of Usurbil apparently living in an industrial warehouse. The other was stopped in Astigarraga. The two are believed to have committed attacks against the construction of the high-speed railway in the Basque region. They are suspected of having close links with ETA’s military leadership. Last Friday’s killing of a policeman intensified operations against ETA. The officer’s death by a booby-trap bomb was the first suspected killing by the group since last year. Its leadership has been hard hit by a series of police arrests.