TUCSON, Ariz. (AP) — Federal authorities are looking for an inmate who walked away from a satellite camp at a federal prison in southern Arizona.

The Bureau of Prisons says 42-year-old Juan Carlos Dorado was discovered missing Thursday from the Federal Correction Complex in Tucson.

He's described as having black hair and brown eyes, 5-foot-7 and weighing about 170 pounds (77 kilograms).

Dorado was serving an 11-year sentence on convictions in Montana for conspiracy to process with intent to distribute methamphetamine and conspiracy to commit money laundering.

The satellite prison camp is a minimum security facility that houses 144 male offenders. The Tucson prison has a total of 654 inmates.