Fireworks sparked and rippled nearby behind crumbled walls and strewn-about debris where three of her children had been working hours before. She called their names through heavy sobs. No one answered.

An investigation is ongoing after an explosion on Tuesday at a fireworks warehouse facility in Esparto as families are demanding answers and closure.

Some residents from the small Yolo County community of Esparto recounted what they witnessed during a fireworks explosion that has left seven unaccounted for.