Seoul( CNN) “Sergeant A” doesn’t want to give his real epithet, his exact rank or indicate his face.

Speaking to CNN, he said he was afraid the South Korean military would find out he was talking to the media. He faces accusations for having sexual intercourse with another man, a crime within the South Korean military punishable by up to two years in prison.

Sergeant A is part of a wider investigation which human rights groups are calling a homophobic witch-hunt, an accusation the military rejects.

Gay North Korean defector speaks out

Taiwan moves closer to decriminalize gay marriage