Inmates at the California Substance Abuse Treatment Facility and State Prison at Corcoran are on a modified program, after a riot involving 63 inmates.
The riot erupted around Friday. Correctional officers had to use tear gas to subdue the inmates.
Nine of the 63 inmates were transported to local hospitals for treatment. Their injuries are described as non life-threatening.
No correctional officers were hurt.
Public information officer Lupe Cartagena said visiting is currently not allowed at the facility, and inmates are not allowed to leave their dorms until further notice.