A riot Thursday morning in San Quentin State Prison was quelled after about 15 minutes and resulted in minor injuries to a guard, a prison spokesman said.
The incident began at about 10 a.m. in a dining hall filled with about 450 inmates from a reception area in the prison's west block, said prison spokesman Lt. Sam Robinson.
He said the guard was taken to an offsite hospital for treatment of hand injuries suffered in the riot, but no significant injuries were reported among the inmate population.
"He had some cuts," said Robinson of the guard's injuries.
He said the cause of the riot was still under investigation.
Robinson said riot participants were primarily Hispanic and black inmates, but he didn't have an accurate count on the number of inmates involved.
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