The Jammu-Srinagar national highway was closed Thursday in Ramban district following a landslide, officials said.
Hundreds of vehicles were stranded on the 294 km road linking Kashmir with the rest of the country.
There was a landslide at Maroog in Banihal area of the district resulting in closure of the highway, traffic police officials said.
Road clearance operation was on, they said, adding it would take four to five hours to make the highway trafficable.