TEHRAN, May 03 (MNA) –At least 20 people were killed when a passenger bus skidded off a mountainous terrain and plunged into a ravine in northwest Pakistan on Friday, authorities said.The incident occurred on the Karakoram Highway in Diamer district of Gilgit-Baltistan region when the bus was on its way from Rawalpindi to Hunza and the driver lost control of the vehicle, a police official said.

It was not clear as to how many passengers were aboard the bus, the official said.

At least 15 people, who were injured in the incident, have been moved to a hospital in Chilas, the official said.

Rescue efforts are in progress and the dead bodies are being shifted to the hospital, the official said.

A hospital source said three women were among the dead.

The area around the Karakoram Highway in Gilgit-Baltistan region.

At least 20 people were killed when a passenger bus skidded off a mountainous terrain and plunged into a ravine in northwest Pakistan on Friday, authorities said.

The incident occurred on the Karakoram Highway in Diamer district of Gilgit-Baltistan region when the bus was on its way from Rawalpindi to Hunza and the driver lost control of the vehicle, a police official said.

MNA/PR