Multiple fires are raging in Southern California. A series of Santa Ana wind-driven wildfires have destroyed hundreds of structures, forced thousands to flee and smothered the region with smoke in what officials predicted would be a pitched battle for days.

Track the latest key details of each major fire | Watch live coverage from KNBC | Follow Times reporters and authorities on Twitter | See photos of the fires: Bel-Air; Ventura County; Sylmar and Santa Clarita | Share your story, photos and video