CORRECTIONAL Service Canada said on Tuesday that an inmate was assaulted in the medium-security unit at Matsqui Institution on May 18.
The injured inmate was evaluated by staff members and transported to an outside hospital to receive treatment.
The Abbotsford Police and the institution are presently investigating the incident.
The assailants have been identified and appropriate actions have been taken.
No staff members or other inmates were injured during this incident.