Burned out truck that sparked brush fire
The burned-out truck that sparked the brush fire. Courtesy OnScene.TV

A brush fire several acres in size caused a major backup Thursday afternoon on Route 52 into Santee.

The hillside blaze was on the eastbound side of the highway near Mast Boulevard in the area of Mission Trails Regional Park, according to the California Highway Patrol.

There were no reports of structural threats from the blaze, which was sparked by a truck fire. San Diego Fire-Rescue called in water-dropping helicopters for assistance.

Eastbound traffic was shut down to one lane, causing a backup that stretched for several miles.

— From Staff and Wire Reports

Chris Jennewein is founder and senior editor of Times of San Diego.