In Jammu and Kashmir three persons were killed and seven others injured in a road accident in Jammu district early today. According to official sources, the mishap occurred when a Tata Sumo vehicle on its way from Jammu to Katra skidded off the road and rolled down about 250 feet down near Nagrota, about 20 kms from Jammu City. Three persons died on the spot while seven others have been shifted to Government Medical College, Jammu for specialized treatment. The cause of the accident is said to be the dense foggy conditions which had reduced the visibility conditions in the morning hours in Jammu and its outskirts.<br/>