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.

Seven people are missing after a warehouse holding fireworks caught fire and set off a series of massive explosions in Northern California late Tuesday.

Rescue crews were searching on Thursday for seven people still missing days after an explosion at a fireworks warehouse in Northern California shook a tiny farming community and forced the cancellation of nearby July Fourth celebrations.