Search goes on but there is little hope of finding Khanty-Mansi official alive after he fell into freezing river.

Fear that thawing permafrost caused damage to storage tank.

Startling new footage shows how a ‘mountain moved’, trees were ‘beheaded’, and blocks of river ice ‘flew’ onto the land.

New road and rail link over the Nadym River.

State of emergency declared in city of Nizhnevartovsk, which suffers worst flooding in its history.

Pike with primeval horns from River Irtysh puzzle experts: did rocket pollution lead to mutant fish?

The anglers became trapped in mouth of Silinka River as it joins the Amur River.

Flooding threat ‘averted’ in remote villages after Russian military operation including 7 major explosions.

She pauses for a last look, and then without a backward glance swims across the world's fifth longest river.