A methane gas leak at a coal mine in Russia's far north triggered three explosions that ignited fires and partially collapsed the mine, killing 36 people, officials said Sunday.
The dead included five rescue workers and a mine worker who were killed early Sunday when the third explosion rocked the Severnaya mine in Vorkuta, a town north of the Arctic Circle in the Komi region, the emergency services said.
The first two explosions struck late Thursday, killing four miners and trapping 26 others.
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