massive international relief effort.
Pakistan's worst floods in recorded history began more than two weeks ago in the mountainous northwest and have spread throughout the country. Some 20 million people and 62,000 square miles (160,000 square kilometers) of land — about one-fifth of the country — have been affected.
The scale of the disaster has raised concerns it could destabilize the country, which is pivotal to U.S. hopes of defeating al-Qaida and the Taliban.
Hundreds of victims blocked a major highway with stones and garbage near the hard-hit Sukkur area, complaining they were being treated like animals. Protester Kalu Mangiani said government officials only came to hand out food when media were present.
"They are throwing packets of food to us like we are dogs. They are making people fight for these packets," he said.
The U.N. children's agency warned 3.5 million children were at high risk of deadly waterborne disease such as diarrhea and cholera. It said it did not have enough funds to distribute clean water to victims, or give them medical care.
The Sindh irrigation minister, Jam Saifullah Dharejo, said the dam in Sukkur faced a major test of its strength as floodwaters coursed down the Indus River into Pakistan's highly populated agricultural heartland.
"The coming four to five days are still crucial," he said.
U.N. Secretary-General Ban Ki-moon flew over the flood-hit area Sunday and said he had never seen a disaster on such a scale. He urged the international community to speed up assistance.
The world body has appealed for an initial $460 million to provide relief, of which about 60 percent has been given.
Britain's deputy Prime Minister Nick Clegg accused some nations of failing to offer sufficient support.
"The response from some sections of the international community has been lamentable," Clegg said, without naming the countries he believed had failed to offer appropriate help.
Britain's government has so far provided 16.8 million pounds (US$26 million) in emergency aid in response to the floods, making it one of the largest foreign donors.
The European Union also announced it was considering forming a task force to better coordinate emergency aid in the future after French President Nicolas Sarkozy said the EU's euro 40 million ($51 million) in humanitarian aid was insufficient.
The latest flooding over the weekend hit a poor region on the border between Sindh and Baluchistan provinces.
Sher Khan Bazai, the top government official in Nasirabad district, said 25,000 families had been made homeless by waters 8 feet (2.5 meters) high in some places. About 4,000 small villages had been either cut off or washed out.
"Water is everywhere," he said.
Once the floods recede, billions more dollars will be needed for reconstruction and getting people back to work in the already-poor nation of 170 million people. The International Monetary Fund has warned the floods could dent economic growth and fuel inflation.
While local charities and international agencies have helped hundreds of thousands of people with food, water, shelter and medical treatment, the scale of the disaster has meant many millions have received little or no assistance.
SUKKUR, Pakistan – Angry flood survivors in Pakistan blocked a highway to protest slow delivery of aid and heavy rain lashed makeshift housing Monday as a forecast of more flooding increased the urgency of the BOGOTA, Colombia – A Boeing 737 jetliner with 131 passengers aboard crashed as it prepared to land and broke into three pieces at a Colombian island in the Caribbean early Monday. The region's governor said it was a miracle that only one person died.
Colombian Air Force Col. David Barrero said officials were investigating reports the plane had been hit by lightning before crashing at 1:49 a.m. (3:49 a.m. EDT; 0649 GMT) on San Andres Island, a resort area of 78,000 people about 120 miles (190 kilometers) east of the Nicaraguan coast.
San Andres Gov. Pedro Gallardo said 125 passengers and six crew members had been aboard Aires Flight 8520, but the only person killed was Amar Fernandez de Barreto, 68.
"It was a miracle and we have to give thanks to God," that only one person died, said Gov. Pedro Gallardo.
Officials said 119 people were treated or checked at local clinics and five of them were seriously injured.
The state government said in an e-mail that passengers aboard the plane that left Bogota about midnight included eight U.S. citizens and four Brazilians. They were not identified.
Passengers said the pilot had announced an impending landing and all seemed normal as the plane descended through rain.
But suddenly it hit short and then slid onto the runway on its belly as the fuselage fractured. It wound up on one end of the runway, crumpled and in pieces, as passengers scrambled or were helped to safety.
Firefighters quickly doused the beginnings of a fire on a wing, said police Gen. Orlando Paez.
Ninety-nine passengers were taken to the Amor de Patria Hospital on San Andres, said the hospital director, Dr. Robert Sanchez.
"It's incredible. For the dimension (of the accident), there should be more," he said.
Sanchez said an initial examination indicated that Fernandez de Barreto may have died of a heart attack.
Twenty other passengers were treated at another clinic, according to the national civil aviation agency.
Barrero, commander of the Caribbean Air Group, said by telephone from San Andres that "the skill of the pilot kept the plane from colliding with the airport."
He said the cause of the accident was uncertain. "You can't speculate. Lightning? A gust of wind? The investigation will say."
The airline, Aerovias de Integracion Regional SA, said in a Twitter posting that it has 20 planes, including 10 Boeing 737-100 planes.
It said it was "working and investigating with the aeronautical authorities to determine the causes of what happened."
Barrero said part of the 7,800-foot (2,380-meter) runway had been closed because parts of the plane were still scattered across it. But enough was usable that air ambulances would be able to land.
Paez said by telephone that a group of police officers who had been waiting at the airport for the plane to take them back to the Colombian mainland aided in rescuing the victims.