COLUMBUS, Ohio (AP) — A report has identified staff complacency, supervision problems, and outdated security policies and orders at Ohio's three high-security prisons.

The state commissioned the report after a Feb. 20 attack on a prison guard sent the officer to the hospital for weeks with multiple stab wounds.

The report obtained by The Associated Press through a records request says the quality of prison rounds by supervisory staff in Ohio's three maximum security prisons is questionable.

A three-time convicted killer is suspected in the attack on correctional officer Matthew Matthias at the Southern Ohio Correctional Facility in Lucasville.

Ohio's prison guard union rejects the allegations. It says new security rules for Lucasville agreed to by the state proves the prison system recognizes the dangers posed by high-security inmates.