The U.S. military repatriated 18 detainees from Guantanamo Bay over the weekend to Afghanistan, Yemen, Kazakhstan, Libya and Bangladesh, a Pentagon spokesman said Sunday.

The men, flown out of the U.S. naval base in southeastern Cuba on Friday, were all transferred to the custody of governments in their native countries except for one Yemeni detainee, who was released without conditions, said Navy Lt. Cmdr. Chito Peppler.

The detainees, held for years at the isolated detention center without being charged, were cleared for departure by a military review process that assesses whether detainees have intelligence value or pose a threat to the United States. The military does not provide details about individual cases.

Since the prison opened in January 2002, about 380 detainees have been released from Guantanamo. About 395 prisoners are still held on suspicion of links to al-Qaida or the Taliban, including roughly 85 others cleared to leave for other countries, Peppler said.