At least 23 people have died in flash floods and landslides triggered by heavy rains that lashed southeastern Bangladesh, officials said on Sunday.
Tens of thousands of people were marooned on higher ground as flood waters submerged areas around Cox's Bazar and the hilly district of Bandarban.
Local police official Habibur Rahman confirmed the toll to reporters after four more bodies were recovered from a river on Sunday.
Bangladesh - one of the world's most densely populated countries - is highly vulnerable to natural disasters, including cyclones, droughts, floods and earthquakes.
India, Bangladesh and China are most at risk from river floods, with an increasing number of people threatened because of climate change and economic growth in low-lying regions, a study said in March.