An estimated 200 prisoners at the Calipatria State Prison were involved in a riot Tuesday morning.
The riot started at about 10:15 a.m. in the prison's Facility B general population Level IV yard , a maximum security area. Response teams from other areas of the prison converged on the scene and brought the violence under control after about 8 minutes. Staff fired warning shots , rounds of pepper spray and rubber bullets. Seven inmates were injured and six of those were treated at a local hospital for non-life threatening injuries. Most of the injuries were a result of fighting , but one inmate required stitches after being struck by a rubber bullet. All prisoners have been returned to the prison. No employees were injured. Officers recovered several inmate manufactured weapons at the scene.
Inmate movement at the prison is limited as officials investigate the cause of the riot.
Calipatria State Prison houses approximately 3,800 inmates , 1,700 of them serving life sentences , and 594 are serving life without the possibility of parole.