NORFOLK, Va. (AP) — A Navy hazing case that led to the firing of the top enlisted officer aboard a nuclear submarine was sparked by gay jokes about a sailor who said another man tried to rape him while in a foreign port, according to an investigative report obtained by The Associated Press.

The report sheds light on a hazing case that led to the reassignment of Master Chief Machinist’s Mate Charles Berry, who had been serving as “chief of the boat” on the Kings Bay, Ga.-based USS Florida.