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 outage across southern France temporarily disrupted screenings on the final day of the Cannes Film Festival and left thousands of households without power.
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 overnight.