Some 700,000 people in Bangladesh are bitten by snakes every year and up to 6,000 of those die, making snakebites the country's second leading cause of unnatural death, AP quoted a ministry of health study as saying. Most of the incidents occur during the May to October rainy season when snakes are flushed out of their natural environment, Azizar Rahman, director in charge of the government's department of disease control, said Sunday while explaining the snakebite study's findings. Drowning is the leading cause of unnatural death in Bangladesh, a delta nation that is crisscrossed by some 350 rivers. The country of 150 million people is also home to some 50 species of snake, including the king cobra and krait. The study, which was conducted by eight local and international experts with funding from the government and the World Bank, found that 29 percent of snakebite victims are bitten while walking at night, 24 percent while working in the fields and 15 percent while they are sleeping. The study found only 3 percent of the victims are treated at hospitals or by registered doctors, while 86 percent seek treatment from untrained snake charmers or village healers.