Seven passengers were killed and 10 others injured when a passenger coach collided with a trailer in Chahghi.
According to a Levies spokesman, the incident occurred on Quetta-Taftan Road in Chaghi District.
The bus, heading to Taftan from Quetta, went out of drivers control and collided with a trailer coming from opposite side.
Both the vehicles caught fire that caused more casualties, Levies spokesman said.
The injured have been shifted to different hospitals of Quetta, Dalbindin and Karachi for treatment.
