Reports of widespread damage are emerging from Mayotte after a 100-year cyclone ripped across the French archipelago Saturday, inflicting devastation that one resident likened to an atomic bomb, with hundreds and possibly even thousands of feared victims.

Local authorities said the cyclone, which made landfall with wind speeds above 140 mph, devastated several “shantytowns” across the island.

Authorities in Mayotte fear the death toll from Category 4 Cyclone Chido could reach hundreds or even thousands.