Seven persons were injured when some unidentified motorcyclists lobbed a hand grenade at a vehicle carrying the personnel of Frontier Corps (FC) on Brewery Road in Killi Ibrahimzai area of Quetta, the provincial capital of Balochistan, in the evening of June 27, reports Dawn. According to Police, some unidentified men on motorcycles attempted to target the FC vehicle as they were patrolling the area. But the grenade missed the target and exploded, injuring passers-by