The Himachal Roadways Transport Corporation (HRTC) has stopped plying its buses between Leh and Delhi as this route has been officially closed for winter season, an HRTC official said Sunday.

The route was closed on Saturday. The 1,272-km-long highway is officially closed every year on September 15 as the roads freeze due to extreme cold at Baralacha La and Taglang La passes, HRTC regional manager Mangal Chand Manepa said.