The army rescue team has arrived at the worst-affected areas Mangan and Singhtam in quake-hit Sikkim, which were out of bounds for rescue workers with massive landslides blocking key roads for over two days. 

"These areas, near the epicentre of the earthquake, are totally damaged. The roads from Gangtok to Mangan are blocked by massive landslides on at least 14 places," Army officials said following an aerial survey in the area.

The earthquake has left a trail of devastation damaging roads, houses, and other structures, uprooting mobile phone towers and snapping communication and power lines. At least 41 people have been killed in the earthquake in Sikkim.

Twenty-two people travelling in a bus went missing since last evening in the North district of Sikkim. The North district headquarters of Mangan, located 65 km from Gangtok, seems to be totally devastated, officials said.