Multiple brush fires erupted in San Diego’s North County early Tuesday morning, prompting a fast response from firefighters and mandatory evacuations.

A wind-driven wildfire charred dozens of acres in a sparsely developed area south of Pala Mesa on Tuesday, damaging structures and forcing pre-dawn evacuations before crews could gain the upper hand on the flames.

Lilac Fire initially started today at 1:19 a.m. in San Diego County. It has burned 85 acres after being active for 19 hours, an increase of 68 acres since the last update. A crew of 66 firefighters succeeded in containing 50% of the fire as of Tuesday evening.

After a pair of devastating wildfires in Los Angeles County, another series of brush fires broke out later this month in San Diego County -- including the Lilac Fire which burned over 50 acres before firefighters got the upper hand.

The fires come as San Diego County mountains and valleys, along with other parts of Southern California, remain under a red flag warning.