By Duncan Gardham, Security Correspondent and Paul Cruickshank
Further photographs are said to depict sexual assaults on prisoners with objects including a truncheon, wire and a phosphorescent tube.
Another apparently shows a female prisoner having her clothing forcibly removed to expose her breasts.
Detail of the content emerged from Major General Antonio Taguba, the former army officer who conducted an inquiry into the Abu Ghraib jail in Iraq.
Allegations of rape and abuse were included in his 2004 report but the fact there were photographs was never revealed. He has now confirmed their existence in an interview with the Daily Telegraph.
The graphic nature of some of the images may explain the US President's attempts to block the release of an estimated 2,000 photographs from prisons in Iraq and Afghanistan despite an earlier promise to allow them to be published.
Maj Gen Taguba, who retired in January 2007, said he supported the President's decision, adding: "These pictures show torture, abuse, rape and every indecency.
"I am not sure what purpose their release would serve other than a legal one and the consequence would be to imperil our troops, the only protectors of our foreign policy, when we most need them, and British troops who are trying to build security in Afghanistan.
"The mere description of these pictures is horrendous enough, take my word for it."