The death toll from massive floods Pakistan has risen to 1,100 people, officials said.
Disaster management official Adnan Khan said that the toll could rise even higher since there are areas in Khyber-Pakhtoonkhwa province that rescue workers have not been able to access.
Authorities are struggling to save more than 27,000 people still trapped by the flooding that has plagued the northwest in recent days following heavy monsoon rains.
Khan said more than 20,000 people have been rescued so far.
"Aerial monitoring is being conducted, and it has shown that whole villages have washed away, animals have drowned and grain storages have washed away," said Latifur Rehman, spokesman for the Provincial Disaster Management Authority. "The destruction is massive and devastating."
Almost 700 people have drowned in the Peshawar valley, which includes the districts of Nowshera and Charsada, and 115 others are still missing, Khan said.
The districts of Swat and Shangla have also been hit hard and have suffered more than 400 deaths, said Mujahid Khan, the head of rescue services for the Edhi Foundation, a private charity.
The disaster comes as the residents of Swat are still trying to recover from a major battle between the army and the Taliban last spring that caused widespread destruction and drove some two million people from their homes. About a million of those people are still displaced.
In Swat alone, the floods have destroyed more than 14,600 houses and 22 schools, said Khan.
Authorities have deployed 43 military helicopters and over 100 boats to try to rescue some 27,300 people still trapped by the floods, said Rehman, the disaster management spokesman.