Illinois prisons officials say six employees who were assaulted by five inmates have been released from the hospital.
Illinois Department of Corrections spokeswoman Nicole Wilson says the workers suffered non-life threatening injuries in the incident yesterday at Pontiac Correctional Center.
Wilson says the case will be referred to the Livingston County State's Attorney's office for prosecution when the department's investigation into the assaults is finished.
The prison has maximum and medium security areas and can house nearly 2,300 inmates.