More than 30 vehicles parked at an insurance auto auction lot in Fremont caught fire Saturday afternoon, triggering a large plume of black smoke to billow into the air.

The cars, which were parked closely together in organized rows, were stashed at 7100 Stevenson Boulevard before they mysteriously went up in flames around 4 p.m., fire officials said.

Several cars were damaged after a fire broke out an auto auction car lot in Fremont Saturday afternoon.

A number of firefighters dispatched to the scene immediately went car-to-car and doused the flames, and some stayed on scene to extinguish any hot spots.

The cause of the blaze is not yet known at this time, but an investigation is ongoing, according to fire officials.

Fire Rages at Auto Auction Lot in Fremont, Several Cars Damaged

No one was injured by the fire, and the thick smoke did not pose any air quality problems, according to fire officials.