New Delhi - Indian authorities, aided by the military, intensified their efforts Monday to rescue more than a half-million people marooned by floods in the eastern state of Bihar.
Medical teams were rushed in to prevent outbreaks of diseases in the affected areas.
An estimated 3.5 million people were affected or displaced when the monsoon-driven Kosi River changed its course after almost two centuries after a breach in a dam upstream in Nepal.
Nearly 80 people were killed in Bihar's 16 districts. Saharsa, Supaul, Araria, Purnea and Madhepura districts were among the hardest hit.
Authorities said 1.1 million people were marooned as two weeks of flooding continued in 1,600 villages in the region.