Two men are in custody after an 18-year-old woman was found fatally shot early Saturday in a Carmichael apartment.

Sacramento County sheriff’s deputies found the woman about 2:45 a.m. in an apartment complex in the 5900 block of Sutter Avenue.

The woman had a single gunshot wound in her upper body, according to a Sheriff’s Department news release. Emergency workers attempted to revive her, but she was pronounced dead at the scene.

Deputies detained two men believed to have been inside the apartment when the woman was shot. Authorities are trying to determine the nature of the relationship between the men and the victim. A motive is unknown.

Anyone with information can call the Sheriff’s Homicide Bureau at 916-874-5115.