MARTINEZ (CBS SF)— A big-rig carrying vehicles caught fire on southbound Interstate Highway 680 in unincorporated Martinez Monday afternoon, backing up traffic on the highway, according to the California Highway Patrol.

The car fire was reported shortly before 2:15 p.m. on southbound Highway 680 near the South Pacheco Boulevard off-ramp and the flames spread to the nearby hillside, according to the CHP.

The response to the blaze shut down all but the far left southbound lane of the highway, CHP Officer Kevin Bartlett said.

The lanes were expected to re-open at 5:30 p.m., but cleanup work finished about 15 minutes early with lanes re-opening at 5:15 p.m.

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