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

The cause of the fire, which burned 78 acres, remained under investigation, according to Cal Fire, the state firefighting agency.

Authorities in Northern California have found the bodies of all seven people missing since an explosion last week at a fireworks warehouse that caused a wildfire and shook a tiny farming community.