Cyclone Mora has hit the south-eastern coast of Bangladesh, killing at least five people.
Most of them were killed by falling trees in the districts of Cox's Bazar and Rangamati, officials told the BBC.
Hundreds of houses were fully or partly damaged, the officials said. Significant damage is reported in refugee camps housing Rohingya Muslims from neighbouring Myanmar.
People have been evacuated to shelters, schools and government offices.
Fishing boats and trawlers have been advised to remain in shelters. Flights in the area have been cancelled.
About 20,000 houses in refugee camps for Rohingya were damaged, community leader Abdus Salam told AFP news agency.
We are distributing Food packages in Bangladesh and also emergency Hygene kits. This will include toiletries and many other essential items.
A food package is-
Ramadan Food Package: £50.00
Hygiene kit £20.00
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