A7 Gas Explosion in Mexican Mine In Mexico scores of coal miners were trapped deep underground when a gas explosion caused an avalanche of rock that sealed off a mine shaft in the border state of Coahuila , state authorities said .
Mexico /location/country/administrative_divisions Coahuila
Mexico /location/location/contains Coahuila
Coahuila /location/administrative_division/country Mexico
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Mexico
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Coahuila
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Mexico
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Coahuila
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Coahuila
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Mexico
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