A DNA testing process to identify the remains of the seven victims of the deadly fireworks warehouse explosion in the Esparto area is underway.

Beyond that, local officials cited the ongoing criminal investigation led by the Office of the State Fire Marshal. Investigators from the federal Bureau of Alcohol, Tobacco, Firearms and Explosives, as well as Cal-OSHA and others, are also investigating what unfolded in the late afternoon July 1.

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.

Jasmine Nguyen of Anaheim was killed when a "large illegal fireworks display" in a residential neighborhood went awry in Buena Park, police said.