Officials in San Bernardino County, California, issued an evacuation after a brush fire spread to over 7,000 acres.

Evacuations were ordered Saturday as a wildfire scorched the foothills of a national forest east of Los Angeles, amid a days-long heat wave that pushed temperatures into the triple digits across the region.

The Line Fire more than quadrupled in size on Saturday and led to evacuation orders for more than 5,000 people. A heat wave raises the risk that more fires could start.

Some Southern California residents were forced from their homes Saturday after an explosive wildfire grew by more than 3,000 acres in mere hours – and is burning so intensely that it is creating its own weather.

Thousands of homes and buildings were threatened Sunday by an out-of-control wildfire burning in the foothills of a national forest east of Los Angeles, amid a days-long heat wave that pushed temperatures into the triple digits across the region.