Wildfires burning in Los Angeles County have left five people dead and burned thousands of structures to the ground this week, becoming some of the most destructive the area has seen in decades.

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 early Thursday to control a series of major fires in the Los Angeles area that have killed five people, ravaged communities from the Pacific Coast to Pasadena and sent thousands of people frantically fleeing their homes.