KATHMANDU: A bus veered off a mountain road in west Nepal leaving at least 30 people dead and several more injured, a police official said.

Police official Ramesh Bahadur Dhanuk said the bus drove off the gravel road Saturday in a remote mountainous area near Chatiwan village.

It was dark and the area was covered in thick fog.

The bus rolled about 300 metres from the road.

Rescuers and local villagers helped the pull the dead and injured from the wreckage.

Among the dead were 22 men, seven women and a child.