Officials say several staffers at the Iowa State Penitentiary in Fort Madison required medical attention after an inmate allegedly attacked one of them.
The Fort Madison Daily Democrat reports the incident occurred Monday morning. The prison was placed on restricted movement as officials investigate the case.
Officials say an inmate attacked a correctional officer after the inmate failed to follow orders from the officer. Three other officers then responded and subdued the inmate.
Two officers were sent to a local hospital for evaluation. Two other officers were seen by medical staff at the prison.
The newspaper reports another inmate has been credited with trying to stop the initial assault.