Rescuers in India are looking at fresh options to save 41 workers trapped in a tunnel for the past eight days.
New plans had to be conceived after work to push in metal pipes through the debris wall was halted and rescue teams were withdrawn after a cracking sound was heard from the tunnel on Friday.
Officials say they plan to drill two parallel tunnels which could provide an “escape route” to the workers.
The under-construction tunnel in Uttarakhand caved in after a landslide.
The incident took place on the morning of November 12 in the northern state’s Uttarkashi district.
Contact with the trapped men was established soon after that and they are being provided oxygen, food and water since then.
The Secretary of the Uttarakhand Disaster Management says they were “working on two side tunnels by the side of the main tunnel for escape”.
So far, rescuers have been drilling inwards from the mouth of the tunnel.
Efforts are now also on to drill from another side of the tunnel to reach the workers.