'All residents of Los Angeles county in danger,' fire chief sayspublished at 16:17 Greenwich Mean Time 8 January
Anthony Marrone is still speaking at the news conference. He says Los Angeles will remain under a red flag weather event alert.
This was issued by the National Weather Service and is predicted to continue until Thursday evening.
"Strong winds and low humidities have placed all residents of Los Angeles county in danger," says Marrone.
The county is home to 9.66 million people and has the largest population of any county in the US.