Some 900 tonnes of lithium batteries were on fire at a battery recycling plant in southern France, authorities said on Sunday, sending a cloud of thick black smoke into the sky above the site.
The fire broke out on Saturday in a warehouse owned by French recycling group SNAM in Viviez, north of Toulouse, local councillor Pascal Mazet said in a statement on X.
Lithium batteries are vital in electrical devices from phones to electric cars, but contain combustible materials which, combined with the energy they store, can make them vulnerable to catching fire when exposed to heat - a potential danger given the toxic materials their burning can emit.