Temperatures of -40C (-40F) and -50C (-58F) in parts of eastern Russia haven't stopped people getting out and having some fun in the snow and ice.
According to the state news agency TASS, current temperatures in Russia are much colder than average for the time of year.
Unsurprisingly, the trick of throwing boiling water in the air and watching it turn into ice - which was popular in North America during the polar vortex - has become a trend. People across the country have been taking part in the "Dubak" challenge, which is Russian slang for bitingly cold weather.
Yekaterinburg, east of the Ural Mountains, Olga Shklyarova took this image of a round cloud of ice
Jumping for joy or to keep warm in the wintry weather in Chelyabinsk a city close to the Ural Mountains?
Rinat Minkov's wheel of ice water
Alexander Borozdin from Nizhnevartovsk added a touch of colour and used two vessels of water to create this angel-like effect