FULLERTON (CBSLA.com) — A fast-moving vegetation fire is 70 percent contained after burning an estimated 80 acres in La Habra and Fullerton.

The Risner fire spread amid dangerously high temperatures in an oil-drilling district on the border of Fullerton and La Habra and threatened some neighborhoods after it broke out Tuesday.

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Firefighters from the Orange County Fire Authority were assisted by their counterparts from the Los Angeles County Fire Department, Brea, Anaheim, Garden Grove, Fullerton and Los Angeles city fire departments in battling the blaze.

Fullerton Deputy Fire Chief Julie Kunze said some residents of the area were evacuated, although it was unclear how many homes and residents were affected.

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The blaze broke out about 4:15 p.m. Tuesday, along Idaho Street about a half-mile south of Imperial Highway, near Risner Way. The brusher burned along both sides of Idaho Street, in a small section of hills surrounded on four sides by housing tracts.

There were no immediate reports of injuries.

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