The police found out, that the reason of the death of 6 Germans in one of the summer houses in Bavaria was carbon dioxide caused by a gas leakage, reports BBC. Bavarian police are trying to determine the cause of the leakage. It is known, that the villa had a wood stove. According to the source, the victims of the accident were 18-19 years old, who were making a party at the summer house owned by one of their parents.