A fresh landslide hampered efforts to rescue 40 labourers trapped in an under-construction tunnel in Uttarakhand for over 70 hours. Rescue officials had spent hours preparing a platform for the auger drilling machine to insert steel pipes through the rubble, but a landslide on Tuesday night forced them to dismantle the machine and start work on the platform again. The drilling machine would have helped create a passage for the labourers to come out of the tunnel which collapsed on Sunday morning. Officials said around 21 metres of slab blocking the tunnel has been removed and a 19 metres passage is yet to be cleared.