The fire occurred in the village of Maralikha, Charysh district.
Killed 34-year-old woman, two boys aged 16 and seven years, as well as a two-year-old girl.
“A criminal case has been opened on the grounds of a crime provided for in the article“ Causing death by negligence to two or more persons, ”the department said.
According to the UK, the preliminary cause of the fire could be careless handling of fire. An investigation team works at the site of the emergency.
Previously, two people died in a fire in a residential building in Moscow.