September 6, 2018 10:45 AM, EDT

California Wildfire Forces Truckers to Abandon Rigs on Highway

Delta Fire burning in the Shasta-Trinity National Forest, Calif.Delta Fire burning in the Shasta-Trinity National Forest, Calif. (Noah Berger/AP)

REDDING, Calif. — An explosive wildfire that closed down dozens of miles of a major California freeway nearly tripled in size overnight, just weeks after a nearby blaze that left neighborhoods in ruins and killed eight people, officials said Sept. 6.

The fire that erupted the afternoon of Sept. 5 and devoured timber and brush on both sides of Interstate 5 near the Oregon state line had expanded to 23 square miles Sept. 6, prompting mandatory evacuations, the U.S. Forest Service said in a statement. That’s up from 8 square miles burning Sept. 5.

Authorities did not say in the statement how many people were affected by the evacuation order, but the fire is in a rural area with scattered homes.

The blaze was human-caused, fire officials said, but they didn’t indicate whether it was arson or accident.

Truckers abandoned their vehicles Sept. 5 as flames roared up hillsides. In a video, a passenger in a vehicle screams: “Oh my God, I want to go!” as trees burst into flames and sheets of fire roiled on the side of the roadway.

About 17 big rigs were abandoned and at least four caught fire, Lt. Cmdr. Kyle Foster of California Highway Patrol’s Mount Shasta office told the Los Angeles Times.

A fire rages as motorists travel on Interstate 5 near Lake Shasta, Calif.

A fire rages as motorists travel on Interstate 5 near Lake Shasta, Calif. (Jerri Tubbs via AP)

U.S. Forest Service workers helped the driver of one flaming truck to safety and other truckers, firefighters and others aided other drivers, he said.

“There’s vehicles scattered all over,” Brandon Vaccaro with the California Department of Forestry and Fire Protection told the Redding Record Searchlight. “Whatever occurred here was probably pretty ugly for a while.”

About 45 miles of I-5 were closed in both directions, said Chris Losi, a spokesman for Shasta-Trinity National Forest. The road remained closed through the night of Sept. 5, and there was no immediate word on when the lanes would reopen.

The blaze also delayed Amtrak’s Coast Starlight train service between Sacramento and Oregon.

Rural homes and cabins in and around the forest were under evacuation orders, from the community Lakehead north to the Siskiyou County line, Losi said.

“It isn’t a lot of people,” he said.

The fire was showing “critical” behavior — burning fiercely and moving rapidly — but still was far from large towns, he added.

The city of Dunsmuir, with about 1,500 people, was about 15 miles from the fire. Residents were issued an evacuation warning, urging them to be prepared to leave.

A nearby fire in the Redding area burned some 1,100 homes and killed eight people last month. It was only fully contained last week.