Due to a mudslide on the roadway, the operator lost control of the shotcrete machine, eventually falling into a deep gorge about 20 to 25 meters below the road level.
A total of 41 workers were trapped after a portion of the under-construction tunnel collapsed on November 12, 2023. The workers were rescued on November 28.
According to information from sources within the tunnel construction company, it has been reported that water accumulation has been observed inside the Silkyara tunnel.