OILDALE, Calif. -- The Kern County Sheriff's Office has determined that a deadly shooting Monday morning was self-defense.

Two men were shot at an apartment complex on the 2100 block of McCray Street, according to a sheriff's office news release. Buck McKay, 29, died, and an unidentified man is reportedly in critical condition at Kern Medical Center.

Deputies were called to the complex about 5 a.m. There, they found McKay suffering from a single gunshot wound to the head. He was taken to KMC, where he later died. The second man was taken by private vehicle to Memorial Hospital and then taken to KMC.

Investigators determined that McCray and the other man came to the apartments with a gun and "became involved in a disturbance with Jesse Ash," according to the news release.

Ash, 26, and Gregory Alexander, 28, were interviewed by detectives and released. The shooting is still under investigation, but detectives believe Ash shot both men in self-defense.

The sheriff's office didn't specify what sparked the confrontation.