Indian rescuers are battling to free 41 men trapped in a road tunnel for nine days since 12 November, as they prepare to dig an entirely new shaft after previous efforts failed.
The tunnel in the northern Himalayan state of Uttarakhand is part of Indian Prime Minister Narendra Modi's infrastructure project aimed at cutting travel times between some of the most popular Hindu sites in the country, as well as to improve access to strategic areas bordering rival China.