Private security guards at the US Embassy in Kabul were pressured to participate in naked pool parties and perform sex acts to gain promotions or assignment to preferable shifts, reports ABC News.
A guard who is a US military veteran, said top supervisors of the ArmorGroup were not only aware of the "deviant sexual acts" but helped to organise them.
"It was mostly the young guys fresh from the military who were told they had to participate," said the guard.
"They were not gay but they knew what it took to get promoted," said the guard, spoke on condition that ABC News not publish his name.
The State Department said it was investigating the allegations and the circumstances surrounding the photographs which show naked and barely clothed men fondling one another. The guard who spoke with ABC News said the drunken parties had been held regularly for at least a year and a half.