France has opened an investigation and accused Iran of being behind recent cyberattacks targeting refrigeration units in supermarkets.

French authorities said on Monday that they are probing a cyber unit affiliated with the Islamic Revolutionary Guard Corps (IRGC) over the attacks, which caused fires and large amounts of food waste.

Foreign Minister Jean-Noel Barrot said that the Iranian ambassador had been summoned and that sanctions would be brought against Iran at a “European level”.

“I can confirm that this attack was carried out by the Islamic Revolutionary Guard Corps of the Islamic Republic of Iran,” Barrot said of the cyberattacks on French supermarkets that occurred October 11 and 12.

The Paris prosecutor’s ⁠office said ⁠it has requested international arrest warrants against ⁠the leader ⁠of Shahid Kaveh, ⁠an offensive cyber unit affiliated with the Revolutionary ‌Guards, and his two ‌deputies.

Barrot told Al Jazeera that the attack was “unprecedented in its level of aggression”.

“This is the…