India has called out the army to rescue thousands of people marooned by overflowing rivers in the remote northeast of the country.
The army was asked to help after about 300 villages in five districts of Assam state were inundated by flood waters that damaged houses, made mostly of bamboo and straw, and washed away roads, bridges and rail tracks.
Some 400,000 people have fled their homes. There were no initial reports of casualties.
About 200,000 people had been evacuated or moved out on their own in Dhemaji district alone, as water levels continued to rise after houses were first flooded last weekend, a military spokesman said. Dhemaji is about 285 miles north of Dispur, Assam's capital.
About 100 small rivers flow into Assam from its neighbouring states and Bhutan and join the mighty Bramhaputra which enters Bangladesh before emptying into the Bay of Bengal.
Central Water Commission officials said they expected the floods to worsen as more rains had been forecast for the region and rivers continued to rise above danger levels, threatening to breach mud dams along the banks.
Assam is hit by floods regularly during the monsoon season that lasts from June to September. Last year, floods killed about 100 people and displaced about 2.5 million of the state's 26 million people.