A 'stay indoors' warning was issued to residents on Monday evening after an explosion at a chemical factory in Lyon. The blast happened at a factory in the Saint-Fons area, south of Lyon, on Monday afternoon. The factory was classed as a Seveso site - a European classification meaning a site with a potential risk to health. Local authorities issued a 'stay indoors' warning to nearby residents in the communes of Saint-Fons, Feyzin, Pierre-Bénite and Vénissieux, and confirmed that the explosion at the factory was followed by a fire. The fire was brought under control by 5pm, and the stay indoors warning was lifted a couple of hours later.

Source: The Local December 22, 2025 21:54 UTC