CORALVILLE– The Iowa Department of Corrections reports several security staff members were assaulted by an inmate at the Iowa Medical and Classification Center at approximately 11:20-a.m, Tuesday.  Authorities say an inmate attempted to leave his unit without authorization. As additional security staff responded, the inmate became combative and landed several closed-fist strikes on the responding correctional officers. Officers quickly gained control of the combative inmate, and placed him in restraints.

The staff members that were assaulted by the inmate were treated by institution medical staff. The inmate appears to have not suffered any injuries. The incident remains under investigation.