A human rights group is alleging the United States uses music by Eminem and Dr. Dre to torture detainees in a secret Afghanistan prison.

New York-based Human Rights Watch quotes an Ethiopian-born detainee as saying he was kept in a pitch-black prison and forced to listen to Eminem and Dr. Dre's rap music for 20 days before the music was replaced by "horrible ghost laughter and Halloween sounds."

The report said detainees at the facility -- known as "Dark Prison" -- were deprived of sleep, chained to walls and forced to listen to loud music in total darkness for days.

Human Rights Watch hasn't been allowed to speak with the detainees directly, but said it obtained the detainees' accounts from their lawyers.