Landslide triggers deadly tunnel collapse in Sikkim; 10 killed, rescue ops underway

Gangtok: Ten people were killed after a tunnel under construction collapsed due to a landslide in Sikkim’s Namchi district a day ago, police said on Tuesday.

The number of victims could go up as search and rescue operations were underway, a Namchi district official said.

Sikkim Chief Minister Prem Singh Tamang said the tunnel of NHPC Teesta Stage VI Hydroelectric Project at Samardung in Jholungey caved in due to a landslide.

A total of 25 people, including project officials and workers, were trapped inside the ADIT-3 tunnel when it suddenly collapsed on Monday, he said.

The CM said Prime Minister Narendra Modi spoke with him and enquired about the rescue operations.

“Ten bodies have been recovered till 9.30 am on Tuesday. Seven of the deceased have been identified, while three unidentified bodies were sent to the District Hospital Singtam and STNM Hospital,” the Namchi police said in a statement.

Of the seven identified deceased, four were from West Bengal’s Jalpaiguri, one each from Assam, Punjab and Uttarakhand’s Dehradun, and one was a resident of Namchi, it said.

“My heartfelt condolences go to the families of the workers, who have lost their lives. In this hour of grief, the thoughts and prayers of the entire state are with the bereaved families, and we stand firmly by them during this difficult time,” Tamang said in a statement.

The chief minister said he was closely monitoring the ongoing rescue operation.

The teams of the Namchi district administration, Sikkim State Disaster Management Authority (SSDMA), Sikkim Police, State Disaster Response Force (SDRF), Fire and Emergency Services, and the National Disaster Response Force (NDRF) from Pakyong and Siliguri, along with other specialised agencies, were working tirelessly to recover the bodies of the remaining workers trapped inside the tunnel, Tamang said.

“Following the tragic incident at the under-construction tunnel of the NHPC Teesta Stage VI Hydroelectric Project at Samardung, Jholungey, in Namchi District, Hon’ble Prime Minister Narendra Modi spoke with me to enquire about the situation and the ongoing rescue operations,” the chief minister said on X.

Tamang also said, “His (PM) words of concern and compassion for the affected workers and their families, along with his assurance of every possible assistance from the Government of India, have provided immense strength and reassurance to the people of Sikkim during this difficult hour.”

The chief minister said he has directed the authorities to provide every possible assistance, expedite the rescue efforts, and ensure that the highest standards of safety are strictly maintained throughout the operation.

On Monday, the district officials had said around 27 workers were trapped inside the tunnel under construction after a landslide blocked its entrance and triggered a suspected gas leak in the afternoon.

The rescue operation had been complicated by the presence of gas inside the tunnel, with several personnel experiencing dizziness and losing consciousness while attempting to reach the trapped workers, they said.

The gas is believed to be naturally emanating from underground strata or rock formations disturbed by the landslide, they said.