A jail inmate was taken to hospital after an incident at Cessnock Correctional Centre on Sunday.
A Corrective Services NSW spokesperson said the incident occurred just before 2.30pm.
“An inmate was treated in hospital for facial injuries after he was assaulted,” the spokesperson said.
“His injuries are non life-threatening. He remains in a stable condition.
“No staff were injured.
“Corrective Services NSW and NSW Police are investigating the incident.”
Central Hunter Police have confirmed they were called to the incident.