The explosion, which left seven people missing, started a wildfire and forced some cities and counties to cancel or postpone Fourth of July fireworks shows.

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.

Investigators have located human remains following an explosion at a Northern California fireworks warehouse, Yolo County said in a statement Friday.

A woman was killed and a man was injured in a house explosion Saturday in Detroit. The Detroit Fire Department responded to the explosion on McCormick Street near Moross Road on the city's east side at approximately 4 p.m. Saturday, according to a statement from the department.