Two French anarchist groups have claimed responsibility for a massive power cut that left more than 160,000 in Nice and the Cannes Film Festival in darkness over the weekend.

The Cannes Film Festival was briefly brought to a halt following a major power outage that has struck south-eastern France just hours after a fire at an electrical substation…

Two French anarchist groups have claimed responsibility for a massive power cut that left more than 160,000 in Nice and the Cannes Film Festival in darkness over the weekend.