Puerto Rico ? A detainee from Bahrain at the U.S. prison for terror suspects at Guantanamo Bay tried to kill himself during a break from a meeting with his attorney, the lawyer said Tuesday.

Juma’a Mohammed al-Dossary had been escorted by guards to use the bathroom in a cell and was left alone when he slashed his arm and tried to hang himself last month, said defense attorney Joshua Colangelo-Bryan.

The attorney said he entered the cell after several minutes and found al-Dossary, 32, hanging from the ceiling unconscious with a large pool of blood at his feet from a gash on his arm.

The incident occurred Oct. 15 while Colangelo-Bryan was at Guantanamo to meet with his 10 clients, who are among some 500 men held at the prison on suspicion of involvement with terrorist activities.

A Guantanamo spokesman, Lt. Col. Jeremy Martin, said the military doesn’t discuss details about individual detainees at the prison, where 27 prisoners have been on hunger strike since August to protest their confinement.

There have been 36 suicide attempts by 22 prisoners since the U.S. began taking prisoners from the war on terror to the base in early 2002, Martin said. There have been no detainee deaths, he said.