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

Seven were missing after the Tuesday fireworks explosion near Esparto, which gripped the small farming community. It sparked a massive fire that led to other spot fires. Nearby Fourth of July celebrations were called off.

The county confirmed that its Coroner’s Division was allowed access to the site of the fire incident, and the Coroner’s Office has been in contact with the families of those who had been reported missing.

No positive identifications have been made, and recovery efforts are still underway, the county said in the statement.

Two people were treated for injuries according to officials. Authorities are still investigating the cause of the blast.