Heavy monsoon rains are soaking parts of Asia, triggering massive floods throughout the region. The U.N. Office for the Coordination of Humanitarian Affairs said more than 1,600 people have died and another 6 million are in need of emergency assistance.
Pakistani authorities said around 2.6 million acres -- around 4,000 square miles -- of crop land are under water and more than 300,000 homes were destroyed.
"Thousands of villages and towns in low-lying areas have not seen flooding on this scale in generations," Andrej Mahecic, a spokesman for the U.N. High Commissioner for Refugees, was quoted by the United Nations as saying.
OCHA said it received more than $44 million for flood relief, with another $91 million pledged. The U.S. Agency for International Development said it was committing another $20 million in financial assistance.
"Our response is consistent with our humanitarian values and our deep commitment to Pakistan," a statement from the U.S. State Department read.
Heavy rain and flooding have cut parts of Pakistan off from the rest of the country, though U.N. agencies said weather conditions have improved.