French authorities believe arson may have played a role in a major power outage that threatened to jeopardize the Cannes Film Festival’s closing celebrations.

French police were investigating a possible arson attack as being the main cause for a power outage which hit the Alpes-Maritimes region in southern France on Saturday, including Cannes which is hosting its world-famous annual film festival.

A major power cut across southern France left around 160,000 homes without electricity on Saturday and impacted the town of Cannes, which is currently hosting its annual international film festival.