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Russian emergency services say a Antonov 26 plane with a six-member crew has disappeared from the Khabarovsk region in the east of the country.
A Mi-8 helicopter is conducting a search and rescue operation, without being able to locate the aircraft at this time.
The Antonov twin engine carried out a technical mission of controlling telecommunications and radar systems.
Bad weather conditions prevail in the area.
Source: Protothema.gr