Dangerous conditions are expected to persist through Friday before flame-fanning winds subside slightly, potentially giving crews a foothold against infernos that have killed at least 10 people.

Wildfires menacing Los Angeles have killed at least 10 people and devoured nearly 10,000 structures, with five fires burning into a third night, as dry desert winds fanning the flames again gathered strength.

Firefighters battled Thursday to control a series of major fires in the Los Angeles area that have killed seven people, burned at least 10,000 structures from the Pacific Coast to Pasadena and sent thousands of people frantically fleeing their homes.