Thousands fled Myanmar's west coast and officials in neighbouring Bangladesh raced to evacuate Rohingya refugees on May 12 as the most powerful cyclone in the region for over a decade churned across the Bay of Bengal. Cyclone Mocha was packing winds of up to 220 kilometres per hour, according to the Indian Meteorological Department, equivalent to a category four hurricane. It is expected to weaken before making landfall on Sunday morning between Cox's Bazar, where nearly one million Rohingya refugees live in camps largely made up of flimsy shelters, and Sittwe on Myanmar's western Rakhine coast.