In Himachal Pradesh, at least 15 people are killed and seven injured when a mini bus rolled down into a deep gorge, 20 kilometres from Keylong in tribal district of Lahaul-spiti.The bus,carrying a cultural troupe to participate in the tribal festival was coming from Leh. The injured have been admitted to the civil hospital Keylong. Efforts are on to retrieve the bodies from the 150 metres deep gorge. The cause of the accident is yet to be ascertained.