Rescue workers are working to reach 40 workers who have been trapped for three days in an under-construction tunnel in India’s Uttarakhand state. The workers are being supplied with food, water, and oxygen through a pipe. Debris from the collapsed tunnel has made it difficult for rescuers to reach the trapped workers. They are now using trenchless tunnelling to create an escape route for the workers. The cause of the collapse is still unknown, and an investigation has been launched. The tunnel is part of a government infrastructure project aimed at improving connectivity in the region.