Jammu, Jan 15 (Agencies): Jammu-Srinagar National Highway remained closed for the second day on Saturday due to heavy snowfall leaving over 400 vehicles stranded on the road.

"The highway remained closed for second day due to heavy snowfall at Jawahir tunnel and Patnitop. The road has been very slippery and at several places," said Senior Superintendent of Police, Highway, Kifayat Hyder.

Over 400 vehicles, including 70 passenger vehicles, got stranded at various places on the highway.

Hyder added that men and machines of Border Roads Organisation (BRO) were working round-the-clock to clear the snow and restore traffic on the highway, but intermittent snowfall is making their task difficult.

"We have directed parking of the passenger vehicles and trucks in safe zones so that the stranded people do not face cold conditions. Most of them have been stopped in Chanderkote, Ramban, and Udhampur," he said.

The fog has also disrupted train traffic as over seven trains reached and left Jammu one to four hours behind schedule since yesterday. Chilly winds are blowing in Jammu city resulting in extreme cold conditions.