LOS ANGELES (AP) — Ground crews getting help from water-dropping aircraft are battling two brush fires in Los Angeles.

A small blaze Sunday near large homes in the Mandeville Canyon area above Brentwood is sending up a huge plume of smoke visible for miles.

READ MORE: 1 Arrested After Spectators Allegedly Block Deputies Trying To Break Up Sutter County Sideshow

The fire has scorched about 4 acres of dry brush and officials say residents should be prepared to evacuate.

READ MORE: Stockton Heat Leaving Central Valley For Canada Starting Next Season

To the northeast, a 15-acre fire is burning away from foothill homes in the Lake View Terrace neighborhood and into Angeles National Forest.

MORE NEWS: Gov. Gavin Newsom Threatens Mandatory Water Cuts If Californians Don’t Use Less Water

City fire spokeswoman Margaret Stewart says crews are contending with rugged terrain and hot conditions.