Nepal rescuers have been working almost around the clock extracting human remains from the gorge strewn with twisted plane seats after a plane with 72 people on board crashed, the country's worst aviation disaster in three decades.

The Yeti Airlines flight with 68 passengers and four crew plummeted into a steep gorge, smashed into pieces and burst into flames as it approached the central city of Pokhara on Sunday. All those on board, including six children and 15 foreigners, are believed to have died.