One person was killed and 7 others were injured in a road accident on Tuesday on the Jammu-Srinagar national highway.Police said two vehicles collided with each other inside the Nashri Tunnel on the Jammu-Srinagar highway."One person was killed on the spot and 7 others were injured. The injured have been shifted to a hospital in Chenani area of Udhampur district."A case has been registered in this incident", police said.