The exact reason of the leak is yet to be established, but a statement from Norilsk Nickel company, which operates the site suggests it could have been caused - worryingly - by collapsing permafrost.
Major rescue operation on the island of Sakhalin went on for two days. Some of the fishermen made their way back to safety on ice floes, using ice diggers as oars.
The Bear Patrol in is on high alert as predators are gathering by a walrus rookery. At least nine polar bears were noticed by residents of Ryrkaipiy, a village in the easternmost region of Chukotka.
Alexey Kolganov films himself skating on transparent ice of lake Baikal, as new cracks form under his skates. Most surprising is the unexpected, cosmic sound.
Overnight ice rain and north winds turned Vladivostok, Russia's Pacific capital, and most of the Primorye region into a frozen land with hundreds of power lines cut by wet snow. The storm left 120,000 people without electricity and many without heating and water.
Father missing under snow; more than 200 people continue search and rescue at -23C, snowstorm and bleak light of polar night.
Baikal is located in a rift zone, a deep crack in the Earth's crust which narrows at depths of several dozen kilometers. A tranquil video of white and silver bubbles of methane caught in newly-formed ice was filmed at Maloye More, a strait that separates the lake's largest island from the western shore of Lake Baikal.
Video shows hero climbers manually breaking ice off its cable stays at height of 324m (1,063ft) in Vladivostok.
A snowpocalypse has engulfed Russia in recent days, with various regions and cities struggling to deal with the freak weather.
For the first time since records began, the Laptev Sea has not yet formed sea ice by the end of October. Scientists attribute the lack of ice to early summer warming and an extreme heatwave in Siberia, as well as warm Atlantic currents flowing into the Arctic.
Fuel shipments normally take place during autumn from departure ports such as Murmansk and Arkhangelsk. However, last fall saw a sudden freeze-up and quickly accumulating sea-ice on the Northern Sea Route, including the Kara Sea. Of the two rescued barges, one contained 7,000 tons of diesel fuel, while the other was loaded with 170 tons of kerosene.
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