QUETTA - Two personnel of Frontier Corps (FC) and a passer-by received serious wounds when unknown militants hurled a hand grenade on the check post of security forces near Golimar Chowk of Quetta here on Friday night. Unidentified armed men lobbed grenade on FC check post near Golimar Chowk, which exploded and caused injuries to two security personnel identified as Lance Naiks Tariq and Iqbal. A passer-by identified as Talib Hussain also received injuries in grenade attack. They were rushed to the hospital for treatment. Police and FC personnel cordoned off the area after the blast and started investigation.