Halemba Coal Mine
The Halemba coal mine is a large mine in the south of Poland in Ruda Śląska, Silesian Voivodeship, 273 km south-west of the capital, Warsaw. Halemba represents one of the largest coal reserves in Poland, having estimated reserves of 120 million tonnes of coal. The annual coal production is around 3.36 million tonnes.
The explosion happened 21 November, 16:30 Polish time, at depth 1030m. The rescue action was hindered due to high concentration of methane and high temperature.
The cause of explosion was reported to be ignition of methane.