Cass County authorities are on the lookout for an inmate who walked away from work detail at Cass County Jail Saturday evening, according to a news release from the Cass County Sheriff’s Office.

According to police, 20-year-old Jason Matthew Graham, an inmate worker at the facility, walked away his duties outside the jailhouse at around 6:35 p.m. The man was serving time for a charge of obstruction of justice.

Graham is a white man with black hair, and is 5 foot 10 inches tall and weighs 140 pounds. He was last seen wearing blue plants and white T-shirt.

While he is considered a low-risk inmate, police are warning the public not to approach him if seen and instead to call 911 immediately.