At least 21 people were killed and 69 injured when a bus carrying  passengers mainly from UP and Rajasthan rolled down into a deep gorge in Akhnoor area in  Jammu district this afternoon, officials said. The accident  occurred near Chungi Morh on Jammu-Poonch highway. The were shifted to nearby hospital in Akhnoor  from where critically injured have been referred to GMC Jammu.