Cyclone Roanu leaves 21 dead and more than 100 injured in Bangladesh

Up to 500,000 people transferred to shelters as cyclone causes landslides, house collapses and embankments to break in Chittagong

A cyclone battered coastal Bangladesh on Saturday, killing at least 21 people and injuring many more.

It has now weakened into a depression that, according to the weather office, could still bring brief periods of violent wind or rain.