"At the moment, 58 people are in hospitals," TASS reports.
On November 25, an accident occurred at the Listvyazhnaya mine in Kuzbass, as a result of which 51 people died.
According to preliminary data, the explosion of methane is believed to be the cause of the accident at the mine.
The Investigative Committee has already opened a case on the negligence of Rostekhnadzor employees.
Two criminal cases will be investigated in the central office of the UK.