This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

LINN, MO (KTVI) – Schools and businesses were on lockdown Friday as police searched for a man who escaped from a federal halfway house. The Missouri State Highway Patrol tells KMIZ that they’re looking for Jason Biermann. He is considered armed and dangerous.

The Osage County Emergency Operations Center says you should call 911 immediately if you see Biermann. He was last seen wearing a blue rain coat and black pants. Last seen around the Linn City Park area.

Right now, U.S. Marshals, the Osage County Sheriff’s Department and Linn police are searching the southwest portion of the Linn, MO for Biermann. A helicopter was used during the search, but had to land due to poor weather. Officers are on the ground and have set up a perimeter.

RT @ABC17News: UPDATE: Jason Biermann is an escapee from a federal halfway house. The latest on the search right now on ABC 17 News at 5. — ABC 17 News (@ABC17News) June 3, 2016

Highway Patrol confirms authorities looking for Jason Biermann, 35, who escaped from prison in Farmington @KRCG13 — Garrett Bergquist (@GarrettBNews) June 3, 2016

Parents picking up children from Linn Elementary. Heavy police presence @krcg13 pic.twitter.com/ucXknJfsA6 — Garrett Bergquist (@GarrettBNews) June 3, 2016

38.485875 -91.850451