Firefighters scrambled to corral a fast-moving wildfire in the Los Angeles hillsides dotted with celebrity homes as a fierce windstorm hit Southern California on Tuesday, fanning the blaze seen for miles as scores of residents abandoned their cars and fled on foot to safety with roads blocked.

About 30,000 residents are under evacuation orders and more than 13,000 structures are under threat, said Kristin Crowley, fire chief of the LA Fire Department.

California Gov. Gavin Newsom said he saw "many structures already destroyed." Officials did not give an exact number of structures damaged or destroyed in the blaze.