Five hundred homes — and some 1,500 people — were under evacuation orders on Tuesday (March 3) as the wind-driven Mann fire broke out along the Santa Ana River bottom in Norco in Southern California.

Footage shows a black smoke fume near Fifth Street in Riverside.

More than 200 firefighters fought the fast-moving blaze.

The Mann fire was reported at 9:51 a.m. and quickly grew from an estimated 10-to-15 acres to about 100 acres, where it was holding as of 2:25 p.m., fire officials said. No injuries or home losses were reported. The cause of the fire was under investigation.

Cal Fire/Riverside County Capt. Fernando Herrera said Tuesday afternoon the wind was slowing down a bit, and that was slowing the advance of the fire.

Filmed from my back yard of the “Mann” fire in Norco CA. Fueled by dry Santa Ana winds of up to 40 mph today.