A small plane with 19 people on board, most of them foreign tourists on a trip to view Mount Everest, crashed in central Nepal near Kathmandu on Sunday, Nepali television channels and a government official said.
Local TV said there were 16 foreign passengers and a crew of three on board the plane.
The Beech aircraft owned by Buddha Air, a private airline, was flying to Kathmandu from a mountain flight to Everest.
"The plane was returning to Kathmandu from a mountain flight when it crashed," an official at the Kathmandu airport Rescue Coordination Centre, who refused to be named because he was not authorised to speak to the media, said.
"Rescue officials have reached the site and details are awaited," he said.
TV channels said the plane had crashed at Kotdanda, about 5 km (3 miles) south of the Nepali capital.
Independent Avenues TV said there were 10 Indians among the foreign passengers.