Ramos Sr., who traveled with family from Los Angeles after hearing of the explosions, said officials had not provided updates on their whereabouts. Syanna Ruiz, the 18-year-old girlfriend of Jesus Ramos, had also voiced frustration over the lack of information during a news conference the previous day.

Seven people are "unaccounted for" after several explosions at a fireworks warehouse resulted in a fire in Northern California's Yolo County, officials said.

A number of municipalities across Northern California have put their Fourth of July fireworks shows on hold after the explosion at a fireworks warehouse in Esparto. Cal Fire says seven people are unaccounted for after the massive explosion at Devastating Pyrotechnics on Tuesday.