According to preliminary information, 20 people were killed and 80 wounded when a SU-27 aircraft fell onto the crowd of spectators in the Western Ukraine in the suburbs of the city of Lvov.
According to the information provided by an operative officer on duty at the Russian Emergencies Ministry, the incident took place during the aviation show at 13.45 Moscow time.
Pilots of the crashed fighter of the Ukrainian Air Forces managed to bale out.
Causes of the catastrophe are being investigated.
The aviation show in the suburbs of Lvov was organized on the occasion of the 60th anniversary of the 14th Ukrainian Air force division.
The choice of the city of Helsinki is not incidental as the capital of Finland had hosted US-Soviet negotiations on the limitation of nuclear stockpiles in 1969