LARNACA, Cyprus (AP) _ Cyprus police detained one of Japan's most-wanted fugitives today _ a senior member of the cult that carried out a deadly nerve gas attack on Tokyo's subways.

Toshiyasu Ouchi was being held in the southern resort of Larnaca, police said. Cyprus does not have an extradition treaty with Japan and police were awaiting instructions from the attorney general, police said.

Ouchi came to Cyprus from Russia on March 12, police said. Interpol had warned Cypriot police about him, so they kept him under surveillance, police spokesman Glafcos Xenos said Thursday.

Ouchi, a top official of the Aum Shinri Kyo, or Supreme Truth, religious sect, is wanted in Japan for his alleged role in conspiring to murder another cult member.

The group's 1995 attack on Tokyo subways killed 12 people and sickened thousands.