At least 200 homes evacuated as wildfire tears through brush east of L.A.

Fast-moving wildfire east of Los Angeles forcing evacuations on Tuesday, August 30, 2016. 

CBS Los Angeles

BANNING, Calif. -- Fire officials say a wildfire tearing through brush east of Los Angeles has forced 700 people from their homes and destroyed a small building.

The Riverside County Fire Department says the fast-moving fire has prompted the evacuation of at least 200 homes as it raced through a square mile of drought-dry hills near Banning.

One firefighter was treated for a non-life threatening injury.

The fire likely was human-caused, authorities said Tuesday evening, CBS Los Angeles reported

The blaze erupted shortly before 12:30 p.m. in the unincorporated Cherry Valley area and has thrown up a line of 25-foot-high flames. Winds gusting to about 20 mph and tinder-dry fuel are helping propel the blaze, which is 5 percent contained.

A mobile home park and scattered homes on large properties have been evacuated.

More than 300 firefighters and more than a dozen aircraft are battling the flames.