Seven people, including six schoolchildren, were killed and 12 injured on Saturday when a private school bus rolled down a deep gorge in Himachal Pradesh's Sirmaur district, police said.

The accident occurred in Sangrah town on Saturday morning. A private bus carrying students of DAV School fell into a gorge. Seven people -- six schoolchildren and the bus driver -- were killed, Superintendent of Police, Sirmaur, Rohit Malpani said.