Firefighters battled a brush fire Thursday that threatened structures in Ventura County, officials said.
The Casitas fire off Vista Road and North Ventura Avenue burned 40 acres as of 3 p.m., said Ventura County Fire Capt. Mike Lindbery.
By 10 p.m. the fire was 50 percent contained, Lindberry tweeted. Crews were slated to remain on scene overnight.
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There were no reported injuries.
The cause was under investigation.