The Srinagar-Jammu highway was closed on Monday morning following fresh snowfall in the Bannihal sector of the over 300-kilometre road.
Officials of the border roads organisation said that there was snowfall during the night in the Bannihal sector of the strategic Srinagar-Jammu highway.
"The highway has been closed for vehicular traffic because of snowfall in Bannihal. It is snowing at this time too. Road clearance operation would start once snowfall stops," an official said.
Many vehicles carrying passengers and goods have been stranded on the highway.
The Srinagar-Jammu highway is the landlocked Valley's only road link to the rest of the country. All essential supplies are routed to Kashmir through this highway. Temporary closures of the highway invariably result in unscrupulous traders resorting to hoarding and profiteering.
The weather department has forecast rain and snowfall in the Valley, set to continue till Feb 7.
An adverse weather advisory issued by Sonam Lotus, director of the local MET office, had said last week that heavy snowfall, especially in the Pir Panjal Mountain Range in the Valley, could disrupt air and surface transport.