ANZA ( — Authorities say a brush fire burning in Riverside County has grown to 500 acres and spurred evacuation orders.

The Riverside County Fire Department says the fire was burning in the area of Highway 74 east of Highway 371 in Anza.

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The blaze, which was the result of a vehicle fire that spread to vegetation, also prompted evacuation orders for homes east of Paradise Valley Café.

This includes all residences on the following streets: Hialeah Way Pimlico Drive Arlington Road Paradise Drive Church Hill Downs Wood Blue.

Authorities said the American Red Cross had established an evacuation center at Hamilton High School, which was subsequently closed since evacuees had sheltered in place.

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Firefighters say the blaze has the potential to spread to 1,000 acres. As of 4 p.m. Monday, it was 10 percent contained. That containment number had not changed as of 5:15 p.m.

Early reports also indicate that a driver on Highway 74 was badly burned when the flames spread to his vehicle.

Fire officials also report that three firefighters suffered minor injuries and were taken to a hospital for treatment.

The fire has forced the closure of Highway 74 and Highway 371. For traffic updates, listen to KNX 1070 Newsradio.

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This is a breaking news report. More information will be provided as it becomes available.