The dead include three men and one woman with three of the bodies so far retrieved and work under way to recover the fourth.

Fourteen others survived after the CHC Helicopter Super Puma L2 plunged into the sea just two miles west of Sumburgh on the Shetland Islands at around 6:30pm local time on Friday.

The helicopter was on hire from French supermajor Total and had left Aberdeen for two rigs before making a return for Sumburgh where it was preparing to land.

Canadian