Officials said an improvised explosive device struck a vehicle carrying coal miners in the country’s southwest.

Authorities in Pakistan’s southwestern Balochistan province said Friday that at least 11 coal mine workers were killed and six injured when their vehicle hit a roadside bomb. The early morning incident occurred near a coal mine in the Harnai district of the insurgency-hit province, which is rich in natural resources.

According to authorities, the explosion was caused by an improvised explosive device (IED) planted beside the road. The labourers were mostly from Swat and Shangla districts and were on their way to work when the blast occurred.

At least ten laborers were killed in a bomb blast in Harnai district of Balochistan, Pakistan, while traveling from their worksite to the market. The

At least 11 people were killed and six others injured in a bomb blast targeting a vehicle in the Harnai district of Pakistan’s southwestern Balochistan province on Friday, according to local officials.

The workers were on their way to a market when the vehicle carrying them was hit by an explosion. Pakistan's restive Balochistan border region has seen a surge in violence in recent years.