Further monsoon rains in flooded parts of northern Pakistan on Tuesday have forced the suspension of helicopter relief flights. Fears of renewed flooding have been raised.
The United Nations says the floods are the worst for 80 years.
More than three million people are affected and 1400 are dead.
The government said some 27,000 people remained trapped and awaiting help.
The Malakand region, which includes the Swat Valley, is among the worst-affected areas
The BBC reports some survivors complain that the government has responded too slowly.
