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.
There were no reported injuries.
The cause was under investigation.