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4 RivCo Deputies Treated After Exposure To Unknown Chemical: Sheriff

One deputy was treated at the Moreno Valley Sheriff's Station, authorities said.

| Updated
Four Riverside County sheriff's deputies were treated after exposure to an unknown chemical in Moreno Valley, California on Wednesday, Oct. 21, 2026, authorities said. (Renee Schiavone/Patch)

MORENO VALLEY, CA — Four Riverside County sheriff's deputies were treated Wednesday after being exposed to an unknown chemical substance while responding to a wanted person in Moreno Valley, authorities said.

Deputies from the Moreno Valley Sheriff's Station responded at 3:03 p.m. to the 24000 block of Hemlock Avenue regarding a wanted person, according to the Riverside County Sheriff's Department.

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Upon arrival, deputies contacted the suspect, who was taken into custody, authorities told Patch.

While at the scene, deputies were exposed to an unknown chemical substance. Medical personnel responded to assess and treat three deputies as a precaution. A fourth deputy received treatment at the Moreno Valley Sheriff's Station, authorities said.

The investigation is active and ongoing.

No additional information was immediately available.

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