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Fire crews Monday continued to battle the Bridge Fire in the Angeles National Forest as wildfire grew to burn at least 1,255 acres.
The Bridge Fire, which prompted road closures and evacuations, started at 2:12 p.m. Sunday near Camp Bonita Road, East of Camp Williams, according to Cal Fire.
The fire was at 0% containment as of Monday morning.
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"Overnight, the fire behavior was extremely active, moving south to Glendora Mountain Road," Forest Service officials said, adding that firefighters Monday would focus heavily on structural protection of the communities in the East Fork and preventing further fire spread to the south.
The Los Angeles Sheriff's Department issued evacuation orders for the East Fork communities of Camp Williams and River Community.
Road closures are in effect for Highway 39, East Fork Road, Glendora Mountain Road and Glendora Ridge Road.
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Authorities said seven fire crews with 21 engines and two dozers, along with four helicopters and four fixed-wing aircraft were deployed for the Bridge Fire response.