On Sunday 29 May, a DHC-6 Twin Otter 300 (registered 9N-AET) operated by Tara Air has been reported missing on a domestic flight from Pokhara to Jomsom, Nepal. The aircraft carried 3 crew members and 16 passengers.
A search-and-rescue operations has started. Helicopters were mobilised to search the aircraft but had to return due to bad weather.
https://twitter.com/NoNext_Question/status/153080397682364006
UPDATE
All 19 persons on board unfortunately have died.