Uttarakhand tunnel collapse: Rescuers use ‘pause-and-go’ drilling approach as efforts hit one-week mark | CNN
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Rescue efforts in India have stretched into a seventh day as emergency response teams race to retrieve 40 construction workers trapped underground since Sunday when a highway tunnel they were building partially collapsed in the country’s northern state of Uttarakhand.

Indian authorities are exploring new ways to rescue 40 construction workers trapped underground for more than a week.

The workers became stranded when a highway tunnel they were building partially collapsed in the northern state of Uttarakhand last Sunday.

Although they are being supplied with food and water, a doctor said some of the men were getting ill, and had been vomiting and getting headaches.