Cyclone Mocha threatens Bangladesh and Myanmar with evacuations and shelter preparations.

Bangladesh is evacuating around half a million people to safer areas as Cyclone Mocha, with winds of up to 170kph (106mph) and storm surges of up to 3.6m (12ft), is predicted to make landfall on Sunday. There are concerns the cyclone could hit the world's largest refugee camp, Cox's Bazar, where close to a million people live in makeshift homes. The UN says it is doing what it can to protect these areas. Bangladesh's government does not allow refugees to leave their camps, so many say they are frightened and unsure of what will happen if their shelters are hit by the storm.