Firefighters have gained the upper hand on a fast-moving 400-acre brush fire that prompted evacuations and closed a highway Tuesday afternoon in San Diego County.
The Jennings Fire is now 100 percent surrounded, Cal Fire officials said Thursday.
The fire sparked along I-8 and produced a massive amount of smoke above the East County.
At least five homes were threatened at one point and I-8 was closed in both directions for hours, causing a headache for commuters.
On Wednesday, two firefighters were transported to a hospital for evaluation. A third was evaluated at the scene. No details were given on their conditions.
Investigators found a piece from a car's exhaust system that they say was responsible for starting the fire where I-8 meets Highway 80.
Are you and your family prepared for a brush fire?
County officials advise residents to download the free emergency smartphone application SDEmergency and follow three key steps.
GET READY: Do your 100-foot defensible space in advance
GET SET: Have an emergency plan. Pack your car when Santa Anas arrive.
GO: When told to leave, leave.
For updated information on the fire, you can also call 211.