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Rescue crews have entered a potash mine in southeastern Saskatchewan, where 70 workers have been trapped since a fire broke out early Sunday morning.

Marshall Hamilton, who is one of the mine's managers, said rescuers had to wait until the fire was brought under control late Sunday before they could enter the mine.

A spokesman from Mosaic, the U.S.-based company that owns the mine, said the fire trapped 70 workers and 30 of them haven't made radio contact since the fire broke out.


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