Firefighters were quick to put out a Chula Vista brush fire Tuesday morning.
The fire started on Interstate 5 near E Street at approximately 1 a.m., fire officials said.
Dry brush near the freeway caught fire, lighting up an area about 100 feet by 100 feet in size.
Initially, crews only called out one engine, but the large flames prompted them to call three more engines to the scene.
It took two hours to clear the scene.
The area is next to a nature preserve, known for homeless encampments. Investigators believe that is how the fire started. Initially, firefighters believed a doned power line caused the fire.
No other information was immediately available.