A new Army investigation has implicated 28 U.S. active duty and reserve soldiers in the murder of two Afghan men who died while being detained at the Bagam air base in Afghanistan. The active duty soldiers served in Company A of the 519th Military Intelligence Batallion — the same unit that set up the interrogation system at the Abu Ghraib prison in Iraq.

According to the New York Times, the Afghan men died after suffering “blunt force trauma to the legs.” Investigators determined they had been beaten by “multiple soldiers” and that both men had been chained to the ceiling–one at the waist and one by the wrists.