LOS ANGELES (Reuters) – A wildfire broke out on Monday at the edge of a national forest in Southern California, threatening dozens of homes in the path of the flames and prompting authorities to order residents of several neighborhoods to evacuate their homes.

The so-called Rose Fire, which broke near foothill communities east of the Cleveland National Forest in mid-afternoon, had charred some 150 acres (61 hectares) within several hours, according to the Riverside Fire Department.

The blaze was zero-percent contained by 6 p.m., as local television showed images of the flames bearing down on several homes. There were no immediate reports of injuries or structures destroyed.

More than 200 firefighters were deployed to battle the flames, assisted by three helicopters and six fixed-wing air tankers.