Seven people are still "unaccounted for" after several explosions at a fireworks warehouse resulted in a fire in Northern California's Yolo County, officials said.It happened Tuesday evening in the community of Esparto at Devastating Pyrotechnics.

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

Federal investigators are cautiously searching the warehouse site because of the risk from unexploded materials.