Seven people are still "unaccounted for" in Yolo County's town of Esparto after several explosions at a fireworks warehouse resulted in a fire, officials said.

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

For the first time since massive fireworks explosions leveled a warehouse in the Esparto area of Yolo County, first responders were seen entering the blast zone to begin searching for seven missing people.