A fire broke out during a thunderstorm in a storage area containing the finished goods from a phytosanitary production plant. The fire was caused by a high-intensity lightning bolt that exceeded the protective capacities of the facility’s lightning rod. The POI Internal Response Plan was triggered and 3 large nozzles (diameter: 70) were set up inside the building. Local fire-fighters were notified. The fire was brought under control within 45 min. As a result of this accident, 10 tonnes of products were burned and 400 m² of warehouse space destroyed. The fire extinction water was channelled into the site’s retention basins and thus did not create any pollution risk. Property damage totalled 3.5 million francs.