In Bangladesh, search and rescue operations have been stepped up, as the death toll in landslides in southeastern hilly districts of the country has risen to 146. With at least 20 landslides, Rangamati district is the worst affected and alone resulted in over 100 deaths, including some army personnel who were conducting rescue operations. <br/><br/>Bandarban and Chittagong were the other two affected districts. Nearly three days of torrential rains due to a depression in the Bay of Bengal had triggered a series of landslides in these districts. Officials said, the death toll will rise further as many are still missing under tonnes of debris in southeastern hills. Road and mobile communications have been disrupted, with black-outs reported at many places.