# Eni explosion in Calenzano kills five and injures 26 in factory blast
Event date: 2024-12-09. Five workers were killed and 26 people injured in an explosion at an Eni facility in Calenzano, in the Metropolitan City of Florence, according to Rai News. The blast struck a fuel-storage site during maintenance work, turning a routine industrial task into a deadly workplace disaster.
The supplied evidence says repairs were under way on a vapor recovery system at the time of the explosion. It also says the incident occurred on the same day as the maintenance work and that investigators in Prato were examining the scene. Those details matter because they suggest the explosion happened in a setting where flammable vapors were already part of the operating environment, even though the packet does not provide a final cause.
Rai News reported that the vapor recovery issue involved two collectors, one smaller and one larger, which had reportedly been malfunctioning for some time and were located on lane 6, the area where the explosion happened. The report also notes that vapor from petrol and other fuels forms during tanker loading, reinforcing how dangerous the setting can be even before any fault is confirmed.
The death toll and injury count are the clearest verified facts. Five workers died, and 26 were wounded. That makes the event one of the deadliest industrial accidents in the packet and a major test for local emergency services, workplace safety investigators and the company itself. The evidence also says external safety plans for the depot were seized, indicating that prosecutors were already examining compliance and preparedness.
What the packet does not support is a final technical explanation for the blast. It mentions multiple references to safety, transport risk and the suitability of the site, but those comments are observational rather than conclusive. To stay within the evidence, this article does not claim a confirmed cause, a regulatory violation or responsibility by any specific person or department.
The broader issue, however, is hard to miss. Calenzano is no longer an open industrial fringe; the report quotes Tuscany’s regional president as saying the area is now densely built up with warehouses, businesses and homes. Even if the site was once appropriate when constructed in the late 1950s, the surrounding landscape has changed, making the question of risk management more urgent.
The event also prompted signs of labor unrest and public mourning. The evidence says the fire at the fuel depot had been extinguished, while unions and transport groups were reacting to the deaths. Again, the packet supports only the fact that the tragedy generated a wider safety debate, not any final verdict on cause.
The verified story is therefore straightforward and grim: an explosion during maintenance at an Eni depot in Calenzano killed five people and injured 26, and investigators are now working through safety plans, maintenance records and the condition of the site.



