The Yolo County Board of Supervisors on Tuesday unanimously declared a local state of emergency following a fireworks warehouse explosion and fire that damaged multiple buildings and killed at least seven people who have yet to be identified.

It has been one week since the explosion rocked this tight-knit community, beginning a massive investigation into what caused the deadly blast by the State Fire Marshal’s office.

Authorities raided a San Francisco home in connection with the deadly fireworks explosion that killed seven people in the Yolo County community of Esparto on July 1.