One miner died and eight others suffered minor injuries as a result of a quake at Rydułtowy mine in southern Poland.
A strong tremor hit the mine before midnight 1.2km (0.75 miles) underground, State Mining Authority (WUG) communiqué states.
The tremor measuring 3.25 on the Richter scale was felt in several neighbouring towns including Rybnik.
“As a result of this shock, nine miners were injured. One of them died, eight others suffered light, non-life-threatening injuries,” the statement announces. Most of the wounded came out of the excavation on their own, one was carried out on a stretcher.
“We are in the process of bringing back the miner who died. The rest, slightly injured, are in hospitals in Rybnik, Wodzisław Śląski and Jastrzębie-Zdrój,” the press release notified.
“The rescuers are doing everything to bring the dead miner back to the surface,” the spokesperson of the Polish Mining Group (PGG) said.
There were 20 miners in the threatened area. There is no information yet whether underground excavations have been damaged as a result of the anthropogenic seismic tremor.
The dead miner is the fifth fatal victim so far this year in Polish mining and the third in coal mines.