A second power outage in two days his hit the French Riviera region after a fire at a substation in Nice overnight, which authorities said was caused by a malicious act.

A power cut was reported in the southern French city of France on Sunday, one day after an outage disrupted the nearby Cannes Film Festival. Almost 45,000 households in Nice were affected on Sunday morning due to a fire at a power station,

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.