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.

Human remains were found inside a fireworks' storage warehouse in rural Yolo County, officials announced on Friday, three days after a massive explosion occurred inside the facility.

The property where the fireworks warehouse explosion occurred this week in Yolo County was zoned for agriculture and not for fireworks storage, according to an investigation by Sacramento TV station,