MOSCOW — A methane explosion tore through Russia's largest underground coal mine Saturday, killing 11 workers and injuring 41 others, a regional emergency services ministry official said.
A second blast early Sunday morning forced authorities to halt rescue operations when contact with 20 rescuers was lost, the ITAR-Tass news agency reported.
The second blast destroyed the main air shaft and caused more injuries, and there is a risk of more explosions, Aman Tuleyev, the governor of the west Siberian region of Kemerovo, who is at the site, told reporters.
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