AMMAN - Fifty-one people have been killed in
Russia's worst mining disaster in a decade, prompting three days of mourning in Siberia's Kemerovo region.
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Among the dead were five rescue workers, although a sixth was found alive and taken to hospital in a serious condition.
The blast happened at the Listvyazhnaya mine when coal dust caught fire in a ventilation shaft on Thursday.
Rescuers suffocated as they tried to reach dozens of missing miners.
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