(CNN) -- Heavy rains in Asia have triggered deadly floods that have claimed more than 1,300 lives in China, Bangladesh and Indonesia -- and authorities are warning that the disaster could get much worse.
Hardest hit is central China, where the Yangtze River has reached record levels, claiming at least 1,270 lives and destroying 780,000 homes. About 21 million people in three provinces have been affected by the floods.
More than 1.7 million soldiers and citizens have been mobilized to shore up dikes and dams along the river that authorities are warning could collapse. Nearly one-half of the 59 million people in Hubei province live in low-lying plains along the Yangtze that are protected by the ancient earthen dikes. Parts of Wuhan, an industrial center and Hubei's capital, were submerged.
"There's no electricity, no drinking water, no food and no way to use the toilets, said Xia, a Wuhan official, as he waded through a waterlogged section of the city.
To protect the dikes from waves caused by passing ships, navigation on the Yangtze from Wuhan to Shishou was suspended indefinitely Saturday.
However, there was some relief from the deluge Sunday, the first sunny day in two weeks.
In Bangladesh, the government says 60 people have died since July 10 when the country's three major rivers began to rise after torrential monsoon rains. However, newspapers have put the death toll higher, at 150.
The floods have also contaminated the drinking water supply in some areas, and nearly 7,000 people are suffering from dysentery, diarrhea and fever, said Jawadul Karin, spokesman for Prime Minister Sheik Hasina.
Some low-lying areas of the capital, Dhaka, were knee-deep in water, with more rain in the forecast.
In Indonesia, 14 people were killed in the town of Kediri, in East Java, after torrential rain caused the Supit Urang River to overflow. Floods and landslides also killed 12 people in the districts of Yapen Waropen and Abepura in remote Irian Jaya province.