A massive six-alarm fire broke out at a Kimberly-Clark warehouse in Ontario, California, early Tuesday, prompting a multi-agency response as authorities investigate suspected arson. (KTTV)

It was not immediately known how many households are under evacuation warnings or orders. because of the Springs Fire in Riverside County.

Southern California firefighters are battling two major wildfires, the Springs Fire and the Crown Fire, which are spreading rapidly under dangerously dry and windy conditions.

A brush fire broke out in Riverside County, east of Moreno Valley Friday morning, fire officials said. The Springs Fire started on Gilman Springs road amid windy conditions. A wind advisory was in effect as of Friday afternoon.

Firefighters are continuing to battle the Springs Fire in Riverside County on Saturday.   Authorities were first alerted to reports a brush fire in the 15900 Gilman Springs Road near Moreno