UPDATE: as of 9 p.m. the fire is 10% contained and all lanes of I-8 have been reopened.
All evacuations orders are lifted, shelters are closing & residents may return to their homes. I-8 EB is at 1 lane due to fire equipment.
— Alpine Station (@SDSOAlpine) July 12, 2017
LAKESIDE, Calif. (KGTV)-A 400-acre fire threatened homes and prompted the mandatory evacuation of Alpine residents near Interstate 8 and Old Highway 80 Tuesday afternoon.
The blaze first reported at 2 p.m. prompted the temporary closure of I-8 in both directions between Lake Jennings Park Road in Lakeside and Tavern Road in Alpine, according to the California Highway Patrol.
RELATED: INTERACTIVE MAP: Jennings Fire
By 4:55 p.m., the fire's forward rate of spread had stopped, Cal Fire tweeted. Westbound I-8 reopened but eastbound I-8 remained closed amid heavy traffic. CHP reopened the left lane of eastbound I-8 at Lake Jennings Parkway at 7 p.m.
Cal Fire reports the cause of the fire was related to carbon particles from a vehicle's exhaust.
Three firefighters were injured while fighting the blaze, two with moderate injuries and one with minor injuries, according to Cal Fire. The two firefighters with moderate injuries were taken to a nearby hospital for evaluation.
Mandatory evacuations are in effect for 15000 Viewside Lane in Alpine, though structures are no longer threatened. An evacuation warning was sent to residents of Flinn Springs near Flinn Springs Road and Old Highway 80.
Two evacuation centers have been established:
- Joan MacQueen Middle School located at 2001 Tavern Road in Alpine
The San Diego Humane Society offered to help evacuees with pets: 619-243-3466.
Residents can call 2-1-1 for updated information on the fire.
Mandatory evacuations for the areas of View Side Ln., Alpine are in effect. pic.twitter.com/OWUhn7tUQO
— CAL FIRE SAN DIEGO (@CALFIRESANDIEGO) July 11, 2017
This is a developing story. 10News reporters Steve Fiorina, Matt Boone and Anthony Pura will provide live updates on 10News.com and LIVE on air.
Sandy Coronilla is a KGTV digital producer. Follow her @10NewsSandy