Unseasonably heavy downpours have triggered landslides and submerged large areas in northeastern India, Bangladesh and Nepal for the past three days, leaving at least 93 people dead, officials said Saturday. Bangladesh was the worst hit, with tornadoes and heavy rains lashing the country's north, killing 39 people and injuring hundreds of others, officials and news reports said. In neighboring Nepal, at least five people were killed Saturday and several reported missing in a landslide that buried a bus and truck in the western mountains of the Himalayan kingdom, said police official Dev Adhikari. Saturday's deaths brought the toll of those killed from rains, floods and flood-related diseases this year to 2,262 in India, Pakistan, Bangladesh and Nepal. Most of the casualties occurred during the monsoon season which runs from June to September. In Bangladesh, eight people were killed by falling debris and more than 200 people were injured when a twister hit a crowded tin-roofed prayer hall in Tongi town near Dhaka, Abdul Based, a police official in Tongi, told The Associated Press.