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GLENDORA, Calif. (AP) — Crews are making quick work of a 275-acre wildfire northeast of Los Angeles that forced the evacuation of 200 people from a campground and recreational areas.

U.S. Forest Service spokeswoman Nathan Judy says the blaze in the San Gabriel Mountains is 40 percent contained early Monday.

Judy says the fire was largely reduced to smoking embers thanks to an aggressive air and ground response.

Eight helicopters and 200 firefighters battled the fire in steep, rugged terrain.

It was reported shortly before 2:30 p.m. Sunday afternoon in a canyon above the foothill community of Glendora. No homes were threatened.

The cause of the fire remains under investigation.

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