QUETTA: At least 7 security officials were martyred after three back-to-back explosions targeted Frontier Corps (FC) and police check posts in Quetta on Tuesday. According to the security officials, 7 personnel were martyred while another 5 were injured in three explosions. Moreover, 8 FC personnel were also injured. Moreover, it was said that two suicide bombers were also gunned down during an exchange of fire. The injured have been taken to the hospital, while security officials cordoned off the area.