Attempt to free Indian workers trapped in tunnel hits fresh delay

Drilling machine stalls metres away from where men have been trapped for 13 days since roof collapse

Hopes are high that in a few hours' time the 41 workers who have been trapped in a tunnel for 13 days in north India will emerge to freedom and fresh air.

The mood at the scene - where heavy machinery and a more than 200-strong rescue team have been toiling without a break - was upbeat after a monumental and torturous operation.