A brush fire broke out Monday just northeast of Corona Municipal Airport, blackening 40 acres but not immediately threatening homes.
The non-injury blaze, dubbed the Rincon Fire, was reported about 3:15 p.m. in the area of Corydon and Rincon streets, according to the Corona Fire Department.
Crews from Corona, Riverside and Cal Fire were worked to contain the fire, which prompted the closure of Auburndale Street and Greenbrier Avenue.
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As of about 8:15 p.m., the fire had scorched about 40 acres with 10 percent containment. Twenty-six engines were on site along with one helicopter -- from the Los Angeles County Fire Department -- for air support, officials said.
No evacuations had been ordered, but no estimate was immediately available on when the wildfire might be fully contained.
The brusher started in the same general area of where an acre-wide fire erupted Friday afternoon and was quickly knocked down. A homeless encampment was located near the spot, but there was no word on the cause of that blaze or the current one.
The public was advised to call (951) 817-5800 for fire information.