Several days after floods hit the Indian state of Bihar, tens of thousands still await rescue. In this picture, a group of flood-affected wait for rescue in Madhepura district.
A man displaced by floods is winched to safety by an Indian air force helicopter in Chakramibasa village in Madhepura district.
Aid workers say efforts to rescue tens of thousands of villagers in areas still cut off by the monsoon-swollen Kosi river have entered a critical stage.
Those who have been rescued consider themselves lucky. In the worst-affected areas, food is running out and people are having to drink muddy waters.
Over 600,000 people have been evacuated from the flooded areas and most of them have been accommodated in temporary relief centres.
Flood affected children eat food provided by local people in Madhepura district. Government and aid agencies have started a massive relief operation.
A villager carries a goat as he wades through flood waters in Laxmipur district. Many people say they have lost everything they had accumulated over the years.
An old man gestures to an air force helicopter flying overhead for help in Madhepura district. Some people are refusing to move out because they are afraid their homes will be looted.
Indian air force helicopters have been busy distributing relief aid in flood-hit areas in Purnea district.
People displaced by floods scramble for relief material dropped on the road by an air force helicopter during rescue operations in Madhepura district.