RANCHO SANTA MARGARITA, Calif. — Orange County officials say four firefighters have suffered minor to moderate injuries while battling a brush fire in the Cleveland National Forest.

The county fire authority says the blaze has held steady at 155 acres and is 20 percent contained Thursday.

Capt. Larry Kurtz says some residents of Holy Jim Canyon east of Rancho Santa Margarita have voluntarily evacuated.

Four firefighters were treated, mostly for heat-related issues.

Crews have increased containment of a wildfire that sent about 700 people scrambling from their homes east of Los Angeles in Riverside County.

Officials said the blaze near Banning grew to more than 2 square miles and is 60 percent contained.

All evacuation orders, most of which were from a mobile home park, were canceled late Tuesday.

The fire broke out Tuesday afternoon and moved quickly through tinder-dry brush.