This was reported by RIA Novosti with reference to the press service of the Main Directorate of the Ministry of Internal Affairs for the region.

It is clarified that the killed are grandmother, grandfather and mother and child.

"At present, operational-search measures are being carried out to arrest the suspect," the ministry said in a statement.

Earlier, in the city of Chusovoy, Perm Territory, a criminal investigation was completed, which was opened on the fact of the murder of a ten-year-old girl in August 2020.