The Mi-8 helicopter was connected to the search for the missing private Robinson R44 helicopter.
Robinson had a pilot and a passenger on board.
The search operation is taking place in the Arkhangelsk region, TASS reports, citing sources.

Disappearance of the helicopter
On September 25, a Robinson R44 helicopter took off from the village of Bychye. It was heading to the village of Karandashevskaya.
Contact with the helicopter was suddenly lost and its location is unknown.
On the morning of September 27, the Mi-8 took off from Vaskovo Airport. There are rescuers on board the helicopter.
The operation is coordinated by Rosaviatsia.
Investigators are checking information about the loss of contact with the pilot.
Rosaviatsia is coordinating the search and rescue operation.
The search and rescue operation continues with the participation of a Mi-8 helicopter with a rescue team.