In pictures: Bihar floods

5 September 2013 Last updated at 10:35

Images of floods in the eastern Indian state of Bihar, where more than 170 people have lost their lives in the past week, officials say.
Flood-affected villagers carry their belongings as they navigate through the floodwaters of river Ganges and move to safer grounds, after heavy rains at Patna district in the eastern Indian state of Bihar
More than 170 people have died in monsoon floods in the eastern Indian state of Bihar since last week. More than 5.9 million people in 3,768 villages in 20 districts have been affected, officials say. (Text: Amarnath Tewary in Patna)
A flood-affected villager swims through the flooded waters of river Ganges after heavy rains at Patna district, in the eastern Indian state of Bihar,
The monsoon season generally lasts from June to September, bringing rain which is critical to India's farming output. But the floods in Bihar since late August have been caused by heavy rains in neighbouring Uttar Pradesh and Uttarakhand states, which has led to flooding downstream.
Flood-affected villagers use a boat as they navigate through the floodwaters of river Ganges and move to safer grounds, after heavy rains at Patna district in the eastern Indian state of Bihar
There has been a surge in the water levels of four rivers - the Ganges, Sone, Gandak and Kosi - forcing people to take shelter on embankments or buildings on higher ground.
Flood-affected villagers use temporary rafts as they navigate through the floodwaters of river Ganges and move to safer grounds, after heavy rains at Patna district in the eastern Indian state of Bihar
More than 40,000 people have taken shelter in 89 relief camps. The government says it is providing rice and jaggery, a coarse, unrefined sugar, to those affected.
Bihar floods
In many affected areas villagers are reluctant to leave their homes and animals and move to relief camps - here a man is seen swimming to safety with his cow.
Flood-affected villagers use a temporary raft as they navigate through the floodwaters of river Ganges and move to safer grounds, after heavy rains at Patna district in the eastern Indian state of Bihar
Crops worth $25m (£16.5m) have been damaged in the floods, officials say.
Villagers travel on a makeshift raft with their goat through a flooded area in Terasia Diara in the eastern Indian state of Bihar.
Flood waters have inundated a national highway between Bhagalpur and Naugacchia.
Village boys jump from a tyre tube into floodwaters at Danapur, on the outskirts of the eastern Indian city of Patna
This year's monsoon rainfall in Bihar is down 26% on last year, say experts. This has led to a curious situation: 18 districts are facing drought, while 20 districts are flooded because of heavy rain in neighbouring states.