A portion of a tunnel under construction between Silkyara and Dandalgaon on the Brahmakhal-Yamunotri national highway in Uttarkashi district collapsed in the early hours of Sunday, trapping around 40 workers inside, police said.
They said the incident occurred around 4 am when a 150-metre-long portion of the four-and-a-half-kilometer-long tunnel collapsed.
As soon as information about the incident was received, Uttarkashi Superintendent of Police Arpan Yaduvanshi immediately reached the spot and launched a relief and rescue operation, police added.
