PHOENIX -- A Department of Corrections officer committed suicide at the Arizona State Prison Complex-Perryville on Thursday night, according to a DOC spokesman.

Public information officer Bill Lameroux said the officer was on duty patrolling the facility's perimeter when he apparently shot himself.

The DOC is not releasing the officer's name because his next of kin have not been notified, Lameroux said.

On May 20, a female inmate at Perryville died of exposure after she'd been left outside in a holding cell for several hours.