"Bastrykin instructed ... to report on the progress of the investigation of the criminal case and the initial investigative actions carried out on the murder of three people in the Borsky district of the Nizhny Novgorod region," the statement on the website of the Investigative Committee of Russia says.

It is specified that the head of the Investigative Committee instructed "to thoroughly study all versions of what happened," as well as "to find out the motive for the crime."

On October 12, an unknown person fired at a stop in the Nizhny Novgorod region.

According to official information, as a result of the emergency, three people died, three were injured.

According to media reports, the death toll has increased to four.

The police are looking for the attacker.

The Investigative Committee opened a criminal case. 

OMON and SOBR officers were sent to the village of Bolsheorlovskoye to capture an armed man.