(Portland, OR) -- Police are searching for an escaped inmate from Portland's Columbia River Correctional Institution. State Department of Corrections officials say 53-year-old Quoc Ngyuen walked away from a work crew at the prison Tuesday morning. Nguyen is Asian, five-feet eight-inches tall and 208 pounds with brown eyes and black hair. He was wearing blue jeans, a blue t-shirt, a yellow vest, and a sweatshirt. They were all stenciled with the word "Inmate" in orange.