Jammu: Efforts to reopen the Jammu-Srinagar national highway were impeded with several avalanches hitting various areas of Ramban district, 180 km from here, this morning. However, no casualties were reported. Superintendent of Police (SP) Ramban Anil Magotra said avalanches hit various spots in Ramban district. The first avalanche hit the Shatani Nallah area, blocking the Jammu-Srinagar National highway, he said, adding that the avalanche was 50 metres wide and 7 metres high. Another 45 metre-wide avalanche hit the Nachalana area of the highway, the SP said. As per another report, an avalanche also hit the Mohu Mangat area. Officials of the Natural Disaster Management Cell have advised people living in the snow-hit areas above 7,500 feet not to venture into avalanche-prone areas during the next 24 hours. A major landslide also hit the Digdol, Panthal, Sheri-Bibi, Maroog and Shergarhi areas of the district. Various agencies with the help of the Jammu and Kashmir Police were trying to restore the severed road links and over 250 vehicles laden with essential commodities were being allowed to move slowly towards the Valley.