Indian rescuers battle for third day to free 40 trapped tunnel workers

Rescuers in northern India struggle for a third day to save workers trapped underground after the road tunnel they were building collapsed, with the air force flying in a giant drill to help the operation.

Excavators have been removing debris since November 12 from the site in the Himalayan state of Uttarakhand to create an escape tunnel for the 40 workers, who are all alive.