LINCOLN, Neb. (AP) — Prison officials say the Nebraska Department of Correctional Services is investigating another assault on a staff member.

The department says the incident occurred Tuesday afternoon at the Nebraska State Penitentiary in Lincoln. The officer was transported to a local hospital and released after being treated for non-life-threatening injuries.

Director Scott Frakes says in a statement that the department will not tolerate assaults on its staff. The results of the investigation will be submitted to the local county attorney for prosecution.

Another Nebraska State Penitentiary staff member was assaulted Sunday. Earlier this month, two officers at the facility were dealt minor injuries by an inmate.