QUETTA - A child was injured when unidentified people attacked a vehicle of Frontier Corps (FC) with hand grenade at Sariab Road here on Wednesday, police said. Unidentified armed men hurled a hand grenade on a patrolling vehicle of FC at Sariab Road and escaped from the scene after committing the crime. Resultantly, a grenade exploded and wounded a passerby child. However, the vehicle of security forces was not damaged in the attack. The injured child was shifted to hospital for treatment. Personnel of FC and police cordoned off the area after the incident. Police has registered a case and started investigations.