"We are looking into the likelihood of a fire being started deliberately," said a spokesperson for the French national gendarmerie, adding that no arrests had been made at this stage.

Little Sister star Nadia Melliti won the Best Actress prize, while the Best Actor honour went to Wagner Moura for The Secret Agent. Check out the complete list of winners for the 78th Cannes Film Festival below.

The reason for the power outage in the western part of the French department of Alpes-Maritimes, including in In Cannes, there was an arson attack at one of the power plants, as well as the destruction of power transmission poles.

Join ‘Vanity Fair’ on the ground at the 78th annual Cannes Film Festival, where we’re bringing you up-to-the-minute news, gossip, and film reviews.

City suffers blackout, affecting internet access, mobile networks, train lines and credit card machines, but closing ceremony goes ahead

Bringing a turbulent world together through cinema, the 78th Cannes Film Festival went off largely without a hitch, despite hosting a day of films honoring Ukraine at the outset and provocative films from both Israel and Gaza in various sections.

Local authorities in France's Alpes-Maritimes region on Saturday reported a major electricity outage in parts of the region, including Cannes city, which is hosting its annual film festival. RTE, the electricity transmission system operator of France,