"We need more resources to save (2 million to 3 million) lives," U.N. Emergency Relief Coordinator Jan Egeland said last week. "It's a deadline. This is a line of life or death for tens of thousands -- if not hundreds of thousands -- of people in the Himalayas."
Ann Veneman, head of UNICEF, held news conferences Sunday in Muzzaffarabad and Balakot in the heart of the earthquake zone to emphasize the need for speed, the Daily Times of Pakistan reported.
"It's very important for the world to understand how impacted this area really is, how huge this tragedy is, and how many people are still threatened because of the oncoming winter," Veneman said.
Aid officials say as many as 200,000 people have received no aid at all because of the difficult terrain. Other areas have received nothing except airdrops of food and supplies.
Notable deaths of 2014 [PHOTOS]