Some 200,000 people were marooned in Bangladesh on Sunday when a storm caused a sea surge to swamp a number of villages in southern coastal districts, officials said. At least four people were also killed by a landslide in Teknaf in Cox's Bazar district, 450 km (270 miles) from the capital Dhaka. Heavy monsoon rains in southern, southeastern and northeastern Bangladesh have triggered landslides and flash floods, killing at least 20 people over the past four days, Reuters reported.