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.

Some residents from the small Yolo County community of Esparto recounted what they witnessed during a fireworks explosion that has left seven unaccounted for.

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