“Of course, all the reasons and circumstances of what happened must be established,” he said during a meeting on the safety of mining operations at coal mining enterprises in Kuzbass.

Putin asked the Cabinet of Ministers and local authorities to pay close attention to the victims of the accident, to understand in detail in each case.

“Personal family circumstances can be different, I am well aware of this from previous tragic events of this kind.

Here one cannot be guided solely by paper instructions, ”the Russian leader added.

On November 25, an accident occurred at the Listvyazhnaya mine in Kuzbass, as a result of which 51 people died and dozens were injured.

The Investigative Committee opened a case on the negligence of Rostekhnadzor employees.

Two criminal cases will be investigated in the central office of the UK.