By admin 
CASTAIC, Calif. (KABC) — Firefighters are battling a brush fire burning in Castaic that has snarled traffic, with some evacuations reportedly ordered.
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The blaze was reported shortly after 2:30 p.m. Monday near the northbound 5 Freeway in Castaic. Some structures were apparently in the path of the fire, which was running uphill.
At least 4 acres have burned so far in medium fuel. Crews set up structure protection units as the flames advance.
The California Highway Patrol requested a full freeway shutdown at Lake Hughes Road at 2:43 p.m., according to their traffic information site.
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A shelter-in-place was issued for area residents, according to CHP.
The incident caused a major traffic backup and drivers are advised to use alternate routes. It was not immediately known when the roads would reopen.
This is a developing story. This article will continue to be updated as more information becomes available.
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City News Service contributed to this report.