Cuba ? A Saudi Arabian detainee died Wednesday at Guantanamo Bay prison and the U.S. military said he apparently committed suicide. Critics of the detention center said the death showed the level of desperation among prisoners.

The military did not identify the detainee or describe the manner of death. There are about 80 detainees from Saudi Arabia at Guantanamo.

It would be the fourth suicide at Guantanamo since the prison camp opened in January 2002. On June 10, 2006, two Saudi detainees and one Yemeni hanged themselves with sheets.

Defense attorneys said the death was likely an act of desperation at a prison where detainees are denied access to U.S. civilian courts and isolated in their cells for up to 22 hours a day.

“You have five and a half years of desperation there with no legal way out,” said Michael Ratner, president of the New York-based Center for Constitutional Rights. “Sadly, it leads to people being so desperate they take their own lives.”