At least three FC personnel were killed when unknown men opened fire at them and fled.
Unidentified gunmen on a motorbike opened fire at FC personnel patrolling Samungly Road, said DIG Quetta while speaking to the media.
Two personnel died on the spot while one lost his life during surgery at a hospital, he said.
Ten empty bullets were found from the crime scene. Police are investigating the incident.
Cheif Minister Sanaullah Zehri condemned the attack and demanded a report of the incident.
Quetta has been marred by violence for the last several years.
