A team of United Nations human rights investigators said Thursday they had reliable accounts that detainees were being tortured at the U.S. military base at Guantanamo Citing declassified government documents the investigators said they have uncovered what they describe as “serious allegations of torture, cruel, inhuman and degrading treatment of detainees, arbitrary detention, violations of their right to health and their due process rights.” The UN human rights investigators also accused the Bush administration of ignoring multiple requests for them to be given access to the base to check on the conditions of the detainees. Paul Hunt, a law professor from New Zealand who monitors physical and mental health, said he wanted to investigate the alleged violations in person. Hunt said “Reportedly medical staff have assisted in the design of interrogation strategies, including sleep deprivation and other coercive interrogation methods.”