The bodies of a young man and woman with no signs of life were found in a car in Domodedovo near Moscow.
The bodies of a young man and his companion were found in a car near the airport.
According to the press service of the Investigative Committee, the death is not initially considered criminal, RIA Novosti writes.
An investigation is currently underway to determine the cause of death.
Investigators preliminarily assume that the man and woman may have died from carbon monoxide poisoning.
Information about the incident continues to be clarified. The investigation into the incident continues.