No inmates at California Institution for Men in ##mate were injured . Order ##ed by 11 a.m. but prison on lockdown pending probe . Fifty - five inmates are at hospital after melee . Lt . Mark Hargrove , prison spokesman : Inmates have stab wounds , head injuries .
No employees at California Institution for Men in Chino were injured . Order restored by 7 a.m. but prison on lockdown pending probe . Fifty-five inmates treated at hospital after melee . Lt. Mark Hargrove , prison spokesman : Inmates have stab wounds , head trauma .