Two security officials were seriously injured in a remote-controlled bomb explosion in Nala area of Bara tehsil of Khyber Agency, a private TV reported on Wednesday. According to FC officials, a security forces convoy was patrolling during a search operation against militants when a planted bomb exploded. The injured were shifted to CMH Peshawar. After the explosion security forces cordoned off the area and started a search operation. A curfew was imposed in Bara tehsil while security forces continue to pound militants hideouts.