ICE-olation looms for remote Siberian region
Ships arriving in the region are already facing a 20-centimetre sheet of ice, which has to be smashed by huge cranes.
Around 300 tonnes of vital winter supplies have already been delivered to locals. These include food and construction materials.
Vessels trying to dock in Chukotka are facing delays of several hours.
Forecasters say only aircraft will be able to reach the region in a few weeks.