Rain fell on parts of Southern California on Sunday and the scattered showers were expected to continue overnight, boosting the risk of toxic ash runoff in areas scorched by Los Angeles-area wildfires.

Rain was falling across Southern California on Sunday, bringing some relief to thousands of firefighters battling multiple major blazes for nearly a month in the Los Angeles area, but also prompting new threats of floods and mudslides across burn-scarred lands.

Beneficial rain moved into Southern California over the weekend for wildfire areas, however, the rain brought a new threat of flash flooding. Flood alerts are in place through Monday and more rain is on the way through Tuesday.