A man has been found decapitated at a gas factory near Lyon in France, after an attack President Francois Hollande said bore the hallmarks of terrorism.
A car made it through the factory gates before ploughing into gas canisters, sparking an explosion that injured two people.
Within hours a man was arrested who officials said had been investigated over possible ties to radical Islam.
French media report the suspect was an employee of the decapitated man, who owned a local delivery company.
His delivery firm made regular trips to the factory, which is owned by the US-based company Air Products.
Mr Hollande said the decapitated body had “inscriptions” on it. The French interior minister said: “A flag with Arabic writing on it was found at the scene.”
France immediately launched a terror investigation as news of the attack emerged.
