L.A. County firefighters have stopped forward progress on the Castaic Fire, which was reported at the 32100 block of Castaic Lake Drive.

Fire officials said the brush fire was first reported at about 12:17 p.m., from the intersection of Ridge Route Road and Lake Hughes.

The fire was initially 1 acre in size, and burning in light to medium brush, according to fire officials. It grew to 3 acres before officials declared progress stopped at 1:01 p.m.

There are no structures threatened as of 12:30 p.m., and there 115 firefighters are already on scene, four copters are already assisting and the SuperScoopers are en route.

There are no significant winds reported. No injuries have been reported.

The fire is still at a first-alarm response at 1 p.m., according to officials, which means no additional units have been called.

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