Top executives of VTB Leasing including female deputy director 'all safe' after jumping into sea from stricken aircraft.
The Mi-8 with 25 passengers and a crew of three on board crash landed some 45 km into a flight, said early reports.
Aircraft had been flying as part of a test flight following an engine change when it came down.
Early morning crash involved Hyundai passenger bus and Mercedes Benz minibus.
Survivor from helicopter disaster 'used stars and moon' to direct rescuers to crash site: he was only of 3 survivors out of 22 on board.
Helicopter suffers extensive damage and blades snap off - but only one injury.
Intense search reveals no sign of Mil Mi-8 lost early Saturday with 12 people on board.
Possible 'explosion' at time of Tyva Republic helicopter crash, say experts, as mourning period expected for up to 14 people killed.
A desperate rescue mission saved four people - but up to 24 are feared dead in the air tragedy in the Sakha Republic.