CLAYTON -- The driver of a pickup truck emerged relatively unscathed after the truck overturned and dumped several tomatoes onto Marsh Creek Road on Monday morning, the California Highway Patrol said.

The wreck happened around 9:30 a.m. just outside downtown Clayton, according to CHP Officer Ron Simmons. The cause of the wreck wasn't known, and the driver did not suffer any serious injuries, Simmons said. The driver, whose gender wasn't released, complained of pain and was treated at the scene.

Simmons said cleanup crews removed the tomatoes, which spilled into both lanes and forced drivers to move through the area with caution, waved through by a worker monitoring traffic.

Police did not estimate how many tomatoes spilled, but Simmons characterized the mess as "significant."

Contact Rick Hurd at 925-945-4789 and follow him at Twitter.com/3rderh.