Riverside County brush fire burns 10 acres as crews battle flames [Updated]

Firefighters in Riverside County are trying to contain a brush fire that has scorched about 10 acres.

About 100 firefighters on the ground, assisted by two water-dropping helicopters and two aerial tankers, are fighting the blaze as flames consume light grasses near Sierra Avenue in Rubidoux, the Riverside County Fire Department said.

Winds were gusting to 18 mph as crews worked in 85-degree temperatures. Relative humidity was about 33%, officials said.

No injuries were reported and no structures were immediately threatened.

[Updated at 5:08 p.m.: Firefighters have stopped the forward spread of the blaze and confined it to 35 acres, officials said. Crews were mopping up.]

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