SACRAMENTO, Calif. (AP) — Rescue crews were searching on Thursday for seven people still missing days after an explosion at a fireworks warehouse in Northern California shook a tiny farming community and forced the cancellation of nearby July Fourth celebrations.

Seven people are missing after a warehouse holding fireworks caught fire and set off a series of massive explosions in Northern California late Tuesday.

Explosions continued more than 24 hours after the blast caused several spot fires and scattered large pieces of debris across a wide area, officials said.