Authorities are searching for a man who walked away from the Helena Pre-Release Center.
Joseph Dwane Matt is described as 5-foot-9, 225-pound Native American man with black hair, brown eyes and a medium build.
Matt was convicted of robbery in Silver Bow County in 2013.
Anyone who knows of his whereabouts is encouraged to notify local law enforcement. The Helena Police Department can be reached at 406-442-3233.