About half a km ahead of Lachen at Suphu Chu a landslide at 1 AM cut off the road connection, the sources said..
Another landslide at Menchekyong which is 1 km from Lachen on the way to Thangu has blocked the road here, they said.
A third landslide at Zema I, which is 2 km from Lachen has also been reported. Official sources said that it might take another 2-3 days for army personnel to clear the roads.
A landslide had also blocked the road between Chungthang and Lachung at Khedung, however, traffic on this road is likely to resume by tomorrow, the sources added.