© RIA Novosti / Sergey KrasnouhovSakhalin on March 3, 2013
Apparently, the passengers were trying to warm up in the vehicle by leaving the engine running and closing windows, which led to asphyxiation.
There were four people in the car on their way back from a fishing trip, RIA Novosti reports citing police.
The men spent the night in the vehicle, and then one of them went to the nearby village to get help. When he returned, his fellow passengers were dead.
The temperature in the area was below -15 degrees Celsius at the time of the incident.
Over the weekend, heavy snowstorms, strong winds, and blizzards paralyzed traffic across Siberia. Emergency workers are now working to tackle the situation.
View more images of Russian's snowy winter
It is very important when you travel and risk to be stuck by snow to put in your car: some blankets, a bottle of whisky, a shovel, a can of gasoline. And what is very important: if you light up your engine to stay warm, be aware that the exhaust pipe might be under the snow, so you can die by the emanations. So be sure that exhaust pipe is not blocked by the snow!