By admin 
DIAMOND BAR, Calif. (KABC) — An RV fire on the 60 Freeway in Diamond Bar spread to the nearby brush, forcing the closure of most westbound lanes Friday morning.
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The incident was reported around 3:45 a.m. at Diamond Bar Boulevard.
Video from the scene shows the RV fully engulfed in flames on the side of the freeway, as well as the adjoining hillside. The fire burned about 1 acre of brush before crews extinguished it.
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At one point, all lanes of the westbound side of the freeway were shut down. The HOV was eventually reopened but there was still an extensive traffic backup in the morning.
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DEVELOPING: We will add more details to this report as they become available.