BELLEVILLE, New Jersey — Firefighters from multiple jurisdictions are battling a massive multi-alarm blaze that broke out at a mattress warehouse early on Monday, May 4, 2026. The scale of the fire has sent thick, black plumes of smoke into the air, visible from several miles away, causing significant concern for local residents and commuters.

The fire was first reported in the early hours of the morning at an industrial mattress storage facility. What began as a single-alarm call quickly escalated to a multi-alarm emergency as highly flammable materials within the warehouse caused the flames to spread with extreme speed.

In a massive deployment, dozens of fire engines and specialized units from Belleville and surrounding townships were sent to the scene to prevent the inferno from reaching neighboring structures. Fire crews are currently utilizing ladder pipes and high-volume hoses to douse the structure from above, although the intense heat has made it difficult for interior teams to gain access.

The primary concern for authorities remains the safety of surrounding residential blocks and the environmental impact of the burning materials. As a precaution, several nearby businesses and residential homes were evacuated due to dense smoke and the potential for the fire to spread beyond the perimeter.

Local health officials have issued a smoke advisory for Belleville and adjacent areas, urging residents to stay indoors with windows closed as the plume carries synthetic particles from the mattresses. Additionally, major roadways near the industrial site have been closed to ensure unimpeded access for emergency vehicles, resulting in significant traffic delays throughout the region.

The cause of the fire is currently unknown. Once the blaze is fully extinguished and the structure is deemed stable, investigators from the New Jersey State Fire Marshal’s office will begin a thorough sweep of the site.

"Our first priority is the safety of our firefighters and the public," said a local fire official. "Once we have the situation under control, we will work tirelessly to determine exactly how this started."

Updates will be provided as more information becomes available from emergency services.