At least nine people including four police personnel were injured on Tuesday when a police station came under grenade attack on the outskirts of Quetta in restive Balochistan province.

Police said miscreants on motorbikes hurled a hand grenade at New Sariyab Road police station Tuesday morning.

Four policemen were injured in the low intensity blast as attackers managed to flee from the scene. Those injured were shifted to civil hospital Quetta.