A report says the state prison in Toledo has Ohio's highest rates of inmate drug use, prisoner homicides and staff turnover.
The report by a legislative prison committee says inmate-on-inmate and inmate-on-staff assaults jumped between 2010 and 2012.
The review of Toledo Correctional Institution also says inmates at the prison are openly disrespectful to staff.
The report released Thursday by the Correctional Institution Inspection Committee says the prison faces significant challenges.
Ohio prisons spokeswoman JoEllen Smith says incidents of violence are down this year at Toledo as the state takes steps to address the problem.
She says the report's data come from a time when the prison began housing more high-security inmates.
By ANDREW WELSH-HUGGINS, AP Legal Affairs Writer