An aerial view shows the flooded Kharo Chan village in Pakistan's Sindh province on Aug. 25. The United Nations has described the widespread flooding in Pakistan as unprecedented, with more than one-third of the nation underwater. Officials say as many as 20 million people have been affected during Pakistan's worst flooding in 80 years.
Pakistanis displaced by floods take shelter in temporary tents made with charpoys (bedsteads) near a makeshift camp in Baseera in Punjab province on Aug. 26. The United Nations warned that 800,000 people in desperate need of aid had been cut off by the deluge across the country and appealed for more helicopters to deliver supplies to those people reachable only by air.
A boy and other displaced villagers plead for relief rations as a soldier waves a stick in an attempt to maintain order in the Sultan Colony army flood relief camp on Aug. 25. Pakistan's agricultural heartland has been devastated, with rice, corn and wheat crops destroyed by floods.
Suffering from high fever and spasms, Allah Detta is carried by soldiers as he is rushed to receive medical treatment in the Sultan Colony army flood relief camp. Military and aid organizations are struggling to cope with the scale of the disaster, in which more than 1,600 people have died and millions have been displaced.
A boy carries water through a flooded yard in the village of Vasandawali in Punjab. The United Nations has appealed for $460 million to deal with the immediate aftermath of the floods, but has warned that billions will be required in the long term, with villages, businesses, crops and infrastructure wiped out.
Yakub, 8, lies next to his mother Aug. 22 at a makeshift hospital in Muzaffargarh in Punjab, where he's receiving treatment for diarrhea. The U.N. warned that up to 3.5 million children are at risk from water-borne diseases and feared a "second wave" of deaths from disease after cholera was confirmed in some patients.
Flood victims fight for relief bags distributed by soldiers in Nowshera on Aug. 20. U.N. agencies stepped up calls for donors to deliver on their pledges for Pakistan to prevent what U.N. chief Ban Ki-moon called a "slow-motion tsunami" from wreaking further catastrophe.
Wind from a Pakistani navy helicopter blows furniture into the water as a man stands on top of his roof during an emergency aid distribution near Bachel in Sindh Province, southern Pakistan.The U.N. said the massive floods have eclipsed the scale of the devastating 2004 Indian Ocean tsunami.
U.S. Chinook helicopters carrying flood survivors arrive Aug. 9 in Khwazakhela in the Swat Valley. As anger mounts among survivors, the Pakistani government and U.N. officials have appealed for more urgent relief efforts.
Bibi Gul (center) sits with her family in a school transformed into a camp for displaced people on the outskirts of Nowshera. The monsoon swallowed up Gul's house and two of her children. With no news of her son and daughter days later, she is distraught.