Pakistan struggles to avert danger as floods rise, death toll tops 1,300

Pakistani authorities are struggling to prevent the country's biggest lake bursting its banks and inundating nearby towns after unprecedented flooding, while the disaster management agency on Monday raised its toll of flood deaths by another 24.

Record monsoon rains and melting glaciers in Pakistan's northern mountains have brought floods that have affected 33 million people and killed at least 1,314, including 458 children, Pakistan's National Disaster Management Agency said.

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The floods have followed record-breaking summer temperatures and the government and the United Nations have both blamed climate change for the extreme weather and the devastation it has brought.

This aerial photograph shows a flooded residential area after heavy monsoon rains in Jaffarabad, Balochistan. AFP

Authorities on Sunday breached Pakistan's largest freshwater lake, displacing up to 100,000 people from their homes in the hope of draining enough water to stop the lake bursting its banks and swamping more densely populated areas.

But water levels in the lake, to the west of the Indus river in the southern province of Sindh, remain dangerously high.

"The water level at Manchar lake has not come down," Jam Khan Shoro, the provincial minister for irrigation told the media.

He declined to say if another attempt to drain water from the lake would be made.

This aerial photograph shows makeshift tents at Sohbatpur in Jaffarabad, Balochistan, on Sunday. AFP

The floods are a huge burden for an economy already needing help from the International Monetary Fund.

The United Nations has called for $160 million in aid to help the victims of the floods but Finance Minister Miftah Ismail said the cost of the damage was far higher than that.

"The total damage is close to $10 billion, perhaps more," Ismail said in an interview with CNBC.

"Clearly it is not enough. In spite of meagre resources Pakistan will have to do much of the heavy lifting."

Nevertheless, help from abroad is arriving.

Local residents cross a portion of road destroyed by floodwaters in Kalam Valley in northern Pakistan, on Sunday. AP

Relief flights from the United Nations and countries including Turkmenistan and the United Arab Emirates arrived on Monday, the foreign ministry said in a statement.

Elsewhere in the region, floods are also threatening crisis-hit Sri Lanka, while rains have disrupted life in India's technology hub, Bangalore.

The northern summer is the rainy season across much of Asia.

Reuters