A group of nine tourists - some reportedly from Siberia’s largest university - hit by tragedy on the South Chuya mountain ridge.
Search goes on but there is little hope of finding Khanty-Mansi official alive after he fell into freezing river.
Tragedy as teens walked in biting cold rather than wait for bus.
Spotlight placed on public service officials who failed to notice ice blocks on a canopy at flats as the spring thaw starts to arrive.
Doctors fought in vain to save Alexander Stakhanov, 35, on the frozen surface of the world's deepest lake.
Among those hurt are eight children, say the emergency services.
Probe under way into tragedy of two women and man gunned down by colleague said to have had problems at work.
President meets with people affected and pledges support, new homes and financial aid to ensure Khakassia can rebuild.
An accident involved 17 miners some 365 metres beneath the surface at Alrosa's Udachninskiy ore-dressing plant 14 km south of the Arctic Circle.
Four bodies found, search underway for the other six on board a capsized patrol boat in poor weather.