Aircraft had been flying as part of a test flight following an engine change when it came down.
North Korea urged to join Russia and China in fixing reliable numbers for Amur big cats.
Pro-Vladimir Putin demos one year on from the Kiev uprising.
New estimate puts number at 80, almost double some recent figures.
Damage from wave of floods already labelled 'catastrophic' with worse to come as Russian president Vladimir Putin demands: 'Put people first'.
The pair returned from Nigeria, one of the countries stricken with the deadly virus.
Synchronised explosions unblock this major waterway in the Russian Far East to protect villagers from flooding.
Homes underwater in this Far East city, but Russia escapes the worst of destruction.