QUETTA -UNS : Gunmen riding a motorcycle killed three policemen at a checkpoint in Quetta on Sunday before fleeing the scene.
The incident occurred on the main Saryab Road of Quetta.
According to AFP, the attack was later claimed by a local affiliate of the Islamic State group.
Ali Bin Sufyan, a spokesman for the Al Alami branch of the Lashkar-e-Jhangvi (LeJ) militant group, sent AFP a text message taking credit for the shooting.
Earlier this week IS said it had killed two Chinese citizens who were kidnapped last month by armed gunmen in Quetta.