Authorities are searching for a white supremacist Idaho prison inmate and an accomplice who fled after the accomplice shot and wounded corrections officers as they were transporting the inmate from a Boise hospital, according to police.

Police said Nicholas Umphenour is suspected of shooting two corrections officers during Wednesday’s ambush in the ambulance bay at Saint Alphonsus Regional Medical Center. A warrant with a $2 million bond has been issued for his arrest on two charges of aggravated battery against law enforcement and one charge of aiding and abetting an escape, police said.

He and inmate Skylar Meade drove off early Wednesday after the shooting in a gray 2020 Honda Civic with Idaho plates. It’s not known where they are or where they are headed, police said Wednesday evening.