The Oklahoma Department of Corrections says all facilities have returned to normal operations on Saturday and visitation will be restored on Sunday.
Officials said a fight occurred Friday at the North Fork Correctional Center in Sayre, Oklahoma. That fight was ruled an "isolated incident" by ODOC in which an inmate randomly assaulted six other inmates, all of which had lacerations and stab wounds.
The Department of Corrections released the following information on the incident.
"NFCC correctional officers responded and were able to stop the attacks and restrain the assaulting inmate. The six inmates attacked were transported offsite for medical care.
Two inmates were taken by ambulance and four were life-flighted to local hospitals. All inmates are expected to recover.
North Fork Correctional Center will remain on lockdown for the time being.