An enormous mushroom-shaped cloud rises ominously above a Siberian town - sparking fears among witnesses that doomsday has arrived.

The terrifying sight could be seen for miles around and was captured on video from the city of Kemerovo, in Russia's Kemerovo Oblast region.

Russians fear nuclear doomsday as giant mushroom cloud appears over skies in Siberia

You'd be worried too if you saw this suddenly appear on the horizon and emergency services were inundated with calls from worried citizens

An enormous mushroom-shaped cloud rises ominously above a Siberian town - sparking fears among witnesses that doomsday has arrived.

The terrifying sight could be seen for miles around and was captured on video from

Emergency services were inundated with calls from worried onlookers that a nuclear bomb had been dropped and that annihilation was imminent.

Others feared there had been an explosion at the coal mines in the nearby Kuzbass region.

In fact, the terrifying-looking spectacle was in reality a rather beautiful, naturally occurring thunderstorm cloud.

The anvil-shaped cumulo-nimbus often appears after a heavy thunderstorm, meteorologists told news agency Sputnik.

Locals including Sergey Zmaznev recorded images and footage of the extraordinary cloud formation.