As of 11:30 a.m., the Lilac Fire had burned 85 acres and was 35% contained, according to Cal Fire. The fire's forward rate of spread has since been stopped.
Additionally, evacuation warnings were issued in the surrounding area. Officials initially said that the fire was a "potential threat to life and/or property. Those who require additional time to evacuate, and those with pets and livestock should leave now."
The fire was reported a round 1:20 a.m. near Old Highway 395 and Lilac Road, according to the San Diego County Fire Department.
The San Diego County Sheriff's Department issued evacuation orders for nearby areas around 1:33 a.m. An interactive map with updated emergency evacuation information is available here.
A temporary evacuation point is at Castle Creek Country Club located at 8797 Circle R Drive in Escondido.
There are 66 personnel assigned to the fire, including six engines, two crews and one water tender, officials said.
The fire was threatening some structures, the fire authority said.
Another fire in the area started overnight, but firefighters quickly got a handle on it. The Pala Fire broke out overnight near the southbound 15 Freeway and Stewart Canyon Road.
That fire burned around 16 acres before its forward progress was stopped.
City News Service contributed to this report.