The 12 men from the 9,600-dwt Diomid (built 1988) were taken off by helicopter, rescuers said on Thursday.

Three men - two mechanics and a guard - will remain on board until the spring to stop looters.

The ship was en route from Magadan to the port of Vladivostok when it became trapped in ice off the northwestern coast of Sakhalin Island on 30 December, the RIA Novosti agency said.

The