A major power outage struck southeastern France on Saturday, disrupting traffic and briefly halting events at the Cannes Film Festival as the prestigious event prepared to hand out its top prize.

About 160,000 households in the Alpes-Maritimes department lost electricity after a high-voltage line fell Saturday morning, electricity network operator RTE said on X. The outage came hours after a fire at an electrical substation near Cannes overnight had already weakened the grid.

Cannes Film Festival organisers confirmed the outage affected the early activities of Saturday and said the Palais des Festivals — the Croisette's main venue — had switched to an independent power supply.

“All scheduled events and screenings, including the Closing Ceremony, will proceed as planned and under normal conditions,” the statement said. "At this stage, the cause of the outage has not yet been identified. Restoration efforts are underway."

Still, screenings at the Cineum, one of the festival's satellite venues, were briefly suspended, the festival added.

Traffic lights in parts of Cannes and the surrounding city of Antibes stopped working after 10 am, leading to traffic jams and confusion in city centres. Most shops along the Croisette remained closed, and local food kiosks were only accepting cash. Train service in Cannes was also disrupted.

Authorities said restoration efforts were ongoing and urged residents to remain cautious during travel.