The United Nations has said more than 12,000 children have become acutely malnourished in Pakistan's flooded areas.
Many have been exposed to contaminated water, and are vulnerable to disease after seven weeks without proper food and medical care.
The charity Save the Children has warned that many of these children will die if help is not provided immediately.
The warning comes as senior officials from around the world meet UN Secretary General Ban Ki-moon in New York today to discuss the global response to the crisis.
