Crater 'swallowed ex-cop', but no-one can find him a week later.
Mysterious 'gigantic' hole in remote region spotted by helicopters over gas-rich Yamal peninsula.
Tyva republic registers Saudi-like heat but is also hit by wildfires.
Concerns that the wild predators are coming closer to cities and settlements in Russian Far East.
Premier Dmitry Medvedev warned it will take two to three weeks to extinguish the fires raging across Siberia.
Damage from wave of floods already labelled 'catastrophic' with worse to come as Russian president Vladimir Putin demands: 'Put people first'.
Kara-ool Dopchun-ool - the highest shaman in the Tuva Republic, and also Turkey - explains his role in his own words.