The United States Marshals Service has issued a BOLO Alert (Be On the Look-Out) for Rio Don Beierle.
Beierle, 21 years old, is wanted by the Montana Violent Offender Task Force for a probation violation related to a conviction for felony robbery.
According to state prison records, Beierle was convicted of robbery in Missoula County this year and received a three-year deferred sentence.
Beierle is 5-feet, 11-inches tall, 155 pounds, with brown hair and brown eyes.
Anyone with information about Beierle is asked to contact the U.S. Marshals Service at 406-247-7030 or their local law enforcement agency.