France on Monday said Iran's Revolutionary Guards were behind "unprecedented" cyberattacks on supermarket fridges in the country last month, vowing sanctions on a European level against Tehran. "I can confirm that this attack was carried out by Iran’s Revolutionary Guard Corps," Foreign Minister Jean-Noel Barrot said of the cyberattacks on French supermarkets that occurred October 11 and 12. "This attack is unprecedented in both its scale and its level of aggression," he said, adding "we will implement sanctions at the European level against all those responsible for this attack."