The Investigative Committee of the Investigative Committee for the Republic of Bashkortostan added that the mother of the children, together with her 10-year-old daughter, managed to leave the apartment and remained alive.
The murder took place early in the morning on 3 February.
A criminal case has been initiated against a 41-year-old man on the grounds of a crime under paragraphs.
"a", "c" part 1 of Art.
105 of the Criminal Code of Russia (murder of two more persons, minors).