“In order to establish in detail the circumstances of the death of three people during a fire in the village of Sobolevka, the Kamensky Interdistrict Investigation Department of the Regional Investigative Committee opened a criminal case ... causing death by negligence to two or more persons,” the press release says.

According to preliminary data, the source of ignition was inside the house, a fire could have occurred due to careless handling of fire during smoking or violation of the rules for operating electrical appliances.

A forensic fire technical examination has been appointed.

Earlier it was reported that in the Penza region, a preliminary investigation was organized after the bodies of two men born in 1948 and 1963 and a woman born in 1940 were found at the scene of a fire in the house.