Police stepped up a search Thursday for at least three members of the Japanese Red Army terrorist group after the deportation of another member suspected of plotting to disrupt the Olympics.

Hiroshi Sensui, 51, was deported Wednesday after his arrest at a Manila clinic where he had undergone plastic surgery.

Japanese officials said Sensui was serving a life sentence for murder and robbery until he was freed in 1977 in exchange for hostages aboard a Japan Air Lines jet hijacked in Bangladesh.

Morishi Aoki, an official at the Japanese Embassy, said two other members of the leftist terrorist group were believed living in the Philippines. A third, Noruyo Zasaki, lives in Singapore but regularly visits here, Aoki said.