(KLZA)-- A staff member at the Tecumseh state Correctional Institution was seriously injured when assaulted by an inmate Tuesday afternoon.

A news release from the Nebraska Department of Corrections says the assault occurred inside an office where the staff member was interviewing the inmate about a recent infraction when the inmate suddenly moved toward him, and began punching him in the head and face.

A second staff member who was in the office secured the inmate. The injured staff member was treated at the hospital for a broken nose.

Results of an investigation will be provided to the Johnson County Attorney for determination of criminal prosecution.