France marked a day of mourning Monday for victims of Cyclone Chido, which devastated its poorest territory, Mayotte, over a week ago.

French officials raised the death toll in Mayotte to 39 from 35, about 10 days after the islands were battered by a devastating cyclone. Authorities have said thousands may have died in Storm Chido when it hit the islands,

Cyclone Chido not only ravaged Mayotte’s infrastructure but also laid bare tensions between the island’s residents and its migrant population.