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Engineers have reinforced a lifeline to 33 miners buried deep inside a Chilean gold and copper mine. It may take four months to carve a tunnel wide enough to get them out.
The move is aimed to keep the trapped men, supplied with adequate food, water, medicine and communications. A team of doctors and psychiatric experts have also arrived at the mine, to maintain the miners' sanity.
Engineers, are drilling two more narrow shafts, to ensure the lifeline isn't damaged while the larger tunnel is dug.
Mine officials, say the trapped miners reached a shelter below where the tunnel collapsed 18 days ago,BUT say its emergency air and food supplies, will only last 48 hours.