After what happened in Esparto and the large response that followed, CBS News California looked back at another large fireworks-related explosion in California to get an idea of how the investigation in Yolo County may develop.

ESPARTO, Calif. — Seven people were missing Wednesday following an explosion at a fireworks warehouse in rural Northern California that caused a massive fire that spread to farm fields and forced evacuations in the surrounding community, authorities said.

Seven people remain missing following an explosion at a fireworks facility in Esparto in Yolo County, California, on the evening of Tuesday, July 1, authorities have confirmed.