Beachgoers are being asked to stay out of ocean waters of Los Angeles County because of the ongoing wildfires in Southern California.

The Sepulveda fire was the latest blaze in a nerve-racking week as Southern California headed into a fourth consecutive day of red flag fire weather warnings.

New brush fires broke out Thursday across Southern California, as firefighters continued to battle some of the state’s most destructive blazes. A brush fire shut down the northbound lanes of the 405 ...