Displaced Pakistanis treated for illnesses

The United Nations said Friday that the world owes Pakistan "massive" help in recovering from the summer's devastating floods because the country bears less blame than many other nations for climate change, which experts say contributed to the deluge.

Months of heavy monsoon rains and flooding have killed 1,391 people and affected 3.3 million in this South Asian nation while half a million people have become homeless. Plane loads of aid from the United States, the United Arab Emirates, Qatar and other countries have begun arriving, but U.N. Secretary-General Antonio Guterres, who toured the flood-devastated areas, said there's more to be done.

The floods have touched all of Pakistan, including Mohenjo Daro, a UNESCO World Heritage Site, considered one of the best-preserved ancient urban settlements in South Asia.