Urgent cry for help as death toll rises from Pakistan floodingBy the CNN Wire Staff
Desperation grows in Pakistan
NEW: The United States has sent materials to build shelter for 46,800 displaced Pakistanis
NEW: The Pakistan Humanitarian Forum calls for "urgent international support"
Almost 900,000 houses have been damaged and as many as 20 million people affected
The U.N. chief says he has never seen such devastation
Islamabad, Pakistan (CNN) -- As an umbrella group of humanitarian entities called for "urgent international support" Monday in flood-ravaged Pakistan, the United States was sending materials to provide shelter for almost 47,000 displaced Pakistanis.
The U.S. Embassy said that a cargo aircraft carrying 530 rolls of heavy-duty waterproof and fire-resistant plastic sheeting for use as temporary shelters was sent by the United States to Karachi, Pakistan, on Monday, a day after another flight ferried 240 rolls of plastic sheeting to Karachi.
"Our experience has shown that plastic sheeting is urgently needed for temporary shelters, and we know it is urgently needed in Sindh as the flood waters continue to move south," Ambassador Anne Patterson said in a written statement. "It will be supplied along with locally purchased materials that can be easily moved when people are able to return home."
The embassy said the sheeting material will provide dry shelter for 46,800 people in Sindh province. It was going to a logistics hub in Sindh for distribution by local and international organizations.
To date, the United States has committed approximately $76 million for Pakistan emergency flood relief assistance. But the overall global response has not been nearly enough, according to an International Rescue Committee-chaired consortium called the Pakistan Humanitarian Forum.
About $150 million had been received from nations around the world by Monday, the group said in a news release, but much more is needed.
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Gallery: Pakistan flooding in Swat Valley "The international response to the disaster has been too small to even begin to effectively address the needs of survivors," said Tammy Hasselfeldt, the country director of the International Rescue Committee, in the release. "The most urgent priority is to ensure that safe water as well as medicines are available, food supplies are restored and transportation networks fixed to accelerate the delivery of desperately needed aid."
Pakistani Prime Minister Yousaf Raza Gilani said Saturday that as many as 20 million of his countrymen have been affected by the flooding. The Pakistan Humanitarian Forum put the number at 14 million on Monday.
The death toll from the flooding that's raged more than a fortnight is up to 1,463, and more than 2,000 people have been injured, the National Disaster Management Authority said Sunday.
With about one-fifth of the country underwater, almost 900,000 homes had been damaged, the agency said.
United Nations Secretary-General Ban Ki-moon said Sunday that while he has visited sites of natural disasters around the world, he has never seen anything like the devastation created by flooding in Pakistan. He said the disaster is worse than the 2004 Indian Ocean tsunami and the 2005 Pakistani earthquake combined.
"Thousands of towns and villages have simply been washed away," Ban said, speaking alongside Pakistan President Asif Ali Zardari. "Roads, buildings, bridges, crops -- millions of livelihoods have been lost. People are marooned on tiny islands with the flood waters all around them. They are drinking dirty water. They are living in the mud and ruins of their lives. Many have lost family and friends. Many more are afraid their children and loved ones will not survive in these conditions."
Up to 20 million people -- nearly one in 10 Pakistanis -- have been affected in some way by the floodwater. More than 683,000 people have been rescued, but water-borne bacteria and illness have become a serious concern.
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At least 36,000 cases of acute watery diarrhea have been reported, the United Nation's Office for the Coordination of Humanitarian Affairs said in Islamabad Saturday.
Up to 3.5 million children are at high risk of deadly waterborne diseases including watery diarrhea and dysentery, which cause dehydration, said Maurizio Giuliano of the humanitarian affairs office.
Children also are at risk for typhoid and hepatitis A and E, Giuliano said.
Clean water is an urgent need, but UNICEF cannot reach all those in need due to a serious lack of funds, Giuliano said. Medication is a priority, but funding shortages hamper the work of the World Health Organization even though plans are in place. Lack of proper food increases vulnerability, the United Nations said.
President Zardari said his nation needs more international help to deal with the immediate recovery efforts as well as longer-term reconstruction and infrastructure development, according to spokesman Farhatullah Babar.
Ban said he is allocating a further $10 million from the U.N.'s Central Emergency Response Fund, making $27 million allocated since the crisis began.
According to ReliefWeb.int, more than two dozen countries, organizations and individuals have pledged about $305 million.
Ban and Zardari have made a public plea to the international community to increase aid.
Homes, crops, trees, livestock, entire villages and towns have been transformed into vast lakes, forcing thousands of flood victims to huddle in sludgy camps or in jam-packed public buildings.
But when they might be able to return home remains a big question. Pakistan's monsoon season is only about halfway over.
