A man and a woman displaced by floods, walk through flood waters on Sunday in the village of Baseera near Muzaffargarh in Punjab, Pakistan. Daniel Berehulak / Getty Images

A man and a woman, displaced by floods, walk through flood waters on Sunday in the village of Baseera near Muzaffargarh in Punjab, Pakistan. Daniel Berehulak / Getty Images

Floods ravage Pakistan People flee the flooded areas from Basera, near Muzaffargarh, in Punjab Province, Pakistan on 21 August 2010. Pakistan reassured international donors that aid for flood victims would not fall into Taliban hands, as the UN said funds were only trickling in. More than 1,500 people across Pakistan have been killed and hundreds of thousands stranded due to flash floods triggered by the ongoing spell of monsoon rains. EPA / MATIULLAH ACHAKZAI

People flee the flooded areas from Basera, near Muzaffargarh, in Punjab Province, Pakistan on 21 August 2010. Pakistan reassured international donors that aid for flood victims would not fall into Taliban hands, as the UN said funds were only trickling in. More than 1,500 people across Pakistan have been killed and hundreds of thousands stranded due to flash floods triggered by the ongoing spell of monsoon rains. EPA/MATIULLAH ACHAKZAI

Pakistan Flood Pictures Tens of thousands of Pakistanis are fleeing their homes to reach safer ground and aid. At least six million people are now homeless. BBC

Tens of thousands of Pakistanis are fleeing their homes to reach safer ground and aid. At least six million people are now homeless. BBC

In pictures: Pakistan flood devastation