GORKHA, Nepal - Helicopters crisscrossed the mountains above a remote district Tuesday near the epicenter of the weekend earthquake in Nepal that killed more than 4,600 people, ferrying the injured and delivering emergency supplies. Officials said 250 villagers were feared missing in a new mudslide.
Prime Minister Sushil Koirala told the Reuters news agency that the death toll from the disaster -- already nearing 5,000 -- could reach double that figure as rescue crews reach the small villages close to the epicenter and fully assess the damage.
Two helicopters brought in eight women from Ranachour village, two of them clutching babies and a third heavily pregnant.
"There are many more injured people in my village," said Sangita Shrestha, who was pregnant and visibly downcast as she got off the helicopter. She was quickly surrounded by Nepalese soldiers and policemen and ushered into a waiting van to be taken to a hospital.
The little town of Gorkha, the district's administrative and trading center, is being used as a staging post to get rescuers and supplies to those remote communities after Saturday's magnitude-7.8 earthquake.
CBS News correspondent Holly Williams reports that those communities, like much of impoverished Nepal, are home to thousands of people who live in buildings constructed without concern for earthquakes. Officials have warned that in many places, 90 percent of the homes have likely been leveled.
Not far from the quake's epicenter, 250 people were feared missing after a mudslide and avalanche on Tuesday, district official Gautam Rimal said.
Heavy snow had been falling near the village, Ghodatabela, and the ground may have been loosened by the quake. Rimal said officials received initial reports of the disaster by phone but then lost contact.
The village, about a 12-hour walk from the nearest town, is along a popular trekking route, but it was not clear if the missing included trekkers.
Across central Nepal, including the capital of Kathmandu, hundreds of thousands of people were still living in the open without clean water or sanitation more than three days after the quake. It rained heavily in the city Tuesday, forcing people to find shelter wherever they could.
On Tuesday night, French rescuers freed a man from the ruins of a three-story Kathmandu hotel, one of a cluster near the main bus station. The man, identified as Rishi Khanal, was conscious and taken to a hospital, but no other information about him was released.
In Gorkha, some women who came off the helicopters on Tuesday were grimacing and crying in pain and unable to walk or speak, in agony three days after being injured in the quake.
Sita Karki winced when soldiers lifted her. Her broken and swollen legs had been tied together with crude wisps of hay twisted into a makeshift splint.
"When the earthquake hit, a wall fell on me and knocked me down," she said. "My legs are broken."
After an hour of dark clouds gathering, the wind kicked up in Gorkha and sheets of rain began to pour down.
Geoff Pinnock of the U.N.'s World Food Program was leading a convoy of trucks north toward the worst-affected areas when the rain began to pound, leaving them stuck.
"This rain has caused a landslide that has blocked my trucks. I can maybe get one truck through and take a risk driving on the dirt, but I think we'll have to hold the materials back to try to get them out tomorrow by helicopter," he said.
Aid workers who had reached the edges of the epicenter described entire villages reduced to rubble.
"In some villages, about 90 percent of the houses have collapsed. They're just flattened," said Rebecca McAteer, an American physician who rushed to the quake zone from the distant Nepal hospital where she works.
And yet, the timing of the earthquake - near midday, when most rural people are working in the fields - meant most villagers were spared injuries when buildings collapsed, she said. So far, police say they have 373 confirmed deaths in Gorkha district.
Most those injured, she added, were young people and the elderly, since most young men long ago left their villages in search of better-paying work.
"The immediate need is getting support to where it's needed, but there will be a lot of work rebuilding," said McAteer, who was heading back soon to the center of the quake zone.
Thomas Meier, an engineer with the International Nepal Fellowship who accompanied McAteer to the devastated villages, said the disaster's aftermath would stretch long into the future.
"This is a long-term emergency," he said. "This will need major attention for the next five years. People have nothing left."
Jamie McGoldrick, the U.N. resident coordinator in Kathmandu, told reporters that 8 million people had been affected by the quake, and that 1.4 million needed food assistance.
The challenge is to reach them in rugged isolated villages.
After flying by helicopter over the Kathmandu Valley, he noted the erratic path of the quake's power.
"Some areas on one ridge are completely untouched, on the other side it's completely flattened," he said.
At Kathmandu airport, flights arrived with emergency aid and helicopters brought in both foreign trekkers and local villagers from quake-struck areas. Helicopters chartered by trekking companies reached the Langtang area, about 40 miles north of Kathmandu, a popular area for trekking - a key contributor to the country's economy.
Dave Gordon, from San Francisco, said he was in the area until Tuesday waiting for the rescue flight.
"Cliffs came down, four or five porters were deceased, buried in the rock fall," he said of the quake. "Trails are completely destroyed. People are stuck. They can't get out. It was very bad."
The U.N. says it is releasing $15 million from its central emergency response fund for quake victims. The funds will allow international humanitarian groups to scale up operations and provide shelter, water, medical supplies and logistical services, U.N. spokesman Farhan Haq said.
Trucks carrying food were on their way to affected districts outside the hard-hit and densely populated Kathmandu Valley.
In Bhaktapur, just a couple miles east of Nepal's capital city of Kathmandu, teams of rescuers and volunteers have been digging through the wreckage of one house for nearly three days, searching for three people who were inside when the ground began to shake.
Watching on is Bimal Twnabasu. His mother lies beneath the rubble -- but the rescue workers have said there's no hope she's still alive.
Many of Bhaktapur's houses were centuries old. Holly Williams reports the force of the tremors toppled them like dominoes.
Just one street away from Twnabasu's destroyed home Williams found a Chinese search and rescue team. They said they were guided to a crumpled house by the stench emanating from the debris. They believe there's at least one dead body under the debris.
The Chinese have specialist gear, and they're experienced in earthquake zones. The Nepalese police they're working with don't even have gloves.
Nepal simply wasn't ready for a disaster on this scale.
In a small Buddhist Temple Williams and her team found 40 families taking shelter.
They all lost their homes when the earth heaved. Now they're close to running out of food and water, and Bhawani Ranjit told us they're growing frustrated.
"Still we are not getting any help. We are waiting for the help, but no one is looking for us to help," said Ranjit.
The country's confirmed death toll rose to 4,680, said police Inspector Sharad Thapa at the Nepal Police Control Room in Kathmandu. Another 61 were killed in neighboring India, and China's official Xinhua News Agency reported 25 dead in Tibet. At least 18 of the dead were killed at Mount Everest as the quake unleashed an avalanche that buried part of the base camp packed with foreign climbers preparing for summit attempts.
Some 8,063 people have been injured, Deputy Inspector General of Police Komal Singh Bam said. Tens of thousands are believed to be homeless.
Rescue workers and medical teams from at least a dozen countries were helping police and army troops in Kathmandu and surrounding areas, said Maj. Gen. Binod Basnyat, a Nepal army spokesman. Contributions came from large countries like India and China - but also from Nepal's tiny Himalayan neighbor of Bhutan, which dispatched a medical team.
Foreign planes from India, the U.S., China, Malaysia, Pakistan and Israel that brought aid and rescue personnel lined up on the crowded tarmac at Kathmandu's airport.
Coming out of the airport with dried blood on his face and legs, Min Bahadur Raut said he got a ride on a helicopter from a neighbor who had chartered a flight for his mother. He was not able to move his left arm.
"We haven't seen any government help or relief at our village" northeast of Kathmandu, he said. Roads have been closed by landslides. "I don't know what is wrong with me. I have no money," he said. "I have been in pain for days now."