Fire officials say the blaze is threatening power lines as well as the communities of Hasley Canyon and Hathaway Ranch.

Five zones in Los Angeles County are under evacuation orders, with 2,700 residents evacuated and 700 structures threatened by the flames, officials said. Six other zones in this county are currently under an evacuation warning, with 1,400 residents and 5,000 structures at risk, officials said.

The state's latest blaze erupted on Thursday afternoon and spread to more than 4,800 acres in a matter of hours, fire officials say.