Melody Kokoszka, NPR /
Workers are trying to reach 13 coal miners trapped 260 feet underground since Monday. Air quality tests at the mine indicate the level of toxic carbon monoxide inside the mine is high, and possibly deadly.
A camera-equipped robot sent to retrieve information about the miners' status has gotten stuck in the debris. Rescue crews are about 10,000 feet into the mine, but have at least another 3,000 feet to go before they can pinpoint the miners' location.
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