"Prospecting work at the Listvyazhnaya mine in the Kemerovo Region continues," RIA Novosti reports.
It is specified that 890 m of mine workings still remain unexplored.
Work on pumping out water, taking air samples and restoring ventilation structures is carried out around the clock.
An emergency at the mine happened on November 25, as a result of the tragedy 51 people died, 106 were injured.
The authorities spoke about the condition of the victims of the accident at the Listvyazhnaya mine in Kuzbass.