The accident occurred on Sunday, at around 22:30 local time (19:30 GMT) near the village of Vyazovets.
"A helicopter crashed in a field," a spokesperson of the regional branch of the Russian Emergencies Ministry told Sputnik, adding that two people died.
A spokesperson of the local emergency services also told Sputnik that "Two people died [in the helicopter accident."
The victims include the helicopter's pilot and a passenger, the western transport branch of the Russian Investigative Committee said on Telegram.
An investigation into the accident is underway.