A general view from air of the Handlova coal mine in Slovakia
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A general view from air of the Handlova coal mine, some 195 km (120 miles) northeast of the capital Bratislava, where 19 miners were missing after an explosion, August 10, 2009. The explosion at the mine may have been caused by a gas leak, a miner Hornonitrianske Bane Prievidza said.