NAHAN/HIMACHAL PRADESH: At least 18 people died and 25 others were injured when a bus in which they were travelling rolled down into a 1000-feet deep gorge in Sirmaur district of Himachal Pradesh on Monday.

The incident took place late in the afternoon after the driver lost control of the vehicle while negotiating a sharp curve near Ganduri, 120 km from Sirmaur, Superintendent of Police J P Singh said.

There were about 50 people travelling in the bus which was on its way to Solan from Gatadhar in Sirmour, he said.

While injured have been admitted to Sirmour and Nahan hospitals, the critically wounded among them have been moved to PGI, Chandigarh.