The Natrona County Sheriff's Office is on the look out for an escapee who was serving time for robbery.

Twenty-one year old Justin Miller disappeared from the Casper Re-Entry Center sometime this past weekend.

He was finishing up a four-to-seven-year prison sentence, in a case where he pleaded guilty to robbing an employee of the Casper Youth Crisis Center in December 2009.

Miller is described as a white male, about six feet tall, around 190 pounds with blond hair and blue eyes.

Anyone with any information regarding Miller's location is asked to contact the Natrona County Sheriff's Office.