Nepal earthquake: Victims still stranded in remote villages, PM says toll could reach 10,000
"The government is doing all it can for rescue and relief on a war footing," Mr Koirala said. "It is a challenge and a very difficult hour for Nepal."
According to the home ministry, the confirmed death toll stands at 4,682, with more than 9,240 injured.
Nepal told aid agencies it did not need more foreign rescue teams to help search for survivors, because its government and military could cope, the national head of the United Nations Development Program said.
Disbursement of international aid has been slow, partly because aftershocks have sporadically closed the airport.