Days after a California fireworks facility caught fire and exploded, authorities were able to reenter the building and confirm human remains were found.

Two people were injured, and seven others were reported missing following the blast, which happened Tuesday night in Esparto, California.

During a coordinated recovery operation, the Yolo County Coroner’s Division found human remains at the site, officials said on Friday.

No positive identifications have been made.

Fireworks facility explosion in Yolo County, Calif., July 1. (KGO via AP)

The Esparto Fire Protection District requested arson and bomb investigators from CAL FIRE – Office of the State Fire Marshal (OSFM) to lead the origin and cause investigation. The investigation remains ongoing.

Yolo County is offering behavioral health and grief support services to those affected, and the district attorney’s office is providing a victim services program.