 Krupinski mine in Suszec, Silesia
Krupinski mine in Suszec, SilesiaRadio contact with the 34 year-old man disappeared during the rescue operation last Thursday around 820 metres underground, just hours after what was thought to have been a methane blast.
The search for the man was hampered by difficult conditions in the mine, with smoke, fire and methane still evident after the explosion.
One other rescuer and a miner also died and 11 miners were hospitalised last Thursday. 
Investigators are currently looking into whether health and safety standards were being kept to in the mine. 
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source:
 IAR