An explosion at a gas-compressor station killed one person and injured nine.
The Gazprom-owned plant is located on Yamal Peninsula, some 300 kilometers from the nearest city.
Emergency crews only managed to reach the station 3.5 hours after the explosion. The injured were transported to the hospital by two helicopters.
The accident happened during tests at the station. Luckily no pipes were connected to the compressor, so a fire did not break out.
Emergencies Ministry officials are now at the site investigating the incident.