Event Brief
Dec 11, 2025 at 2:12 PM ET
Explosion Causes Massive Fire in Hayward Building
By The BriefBrief
Crews are battling a three-alarm fire in Hayward after an explosion, with reports of possible injuries.
WHO: Fire officials, emergency crews
WHAT: Large building fire possibly caused by an explosion
WHEN: Dec 10, 2025 at 7:00 PM ET
WHERE: Hayward, CA
WHY: Explosion led to significant fire and potential injuries
How this brief is built: The BriefBrief correlates multiple sources into one evolving event brief, updated as new facts emerge.
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