ESPARTO — Three brothers, two of them East Bay residents, were among seven people identified Friday by authorities in Yolo County as victims of an explosion at a warehouse storing fireworks. Investigations continue into the explosion’s fire and origin, and officials have not ruled out the possibility that criminal charges could come later.

Yolo County authorities have officially identified all seven of the people who died in the Esparto fireworks warehouse explosion.

More than half of the seven victims killed in a giant explosion at a Yolo County fireworks storage warehouse were San Francisco Bay Area residents, investigators said. A barrage of fireworks exploded from the warehouse on July 1,