MOHMAND AGENCY - Three security persons were injured when a mortar shell was fired by some unknown insurgents at the Frontier Corps (FC) camp in Safi town on Friday. Some miscreants fired a mortar shell at FC camp injuring three personnel. The FC men timely responded and targeted the suspected hideouts of militants and insurgents with heavy artillery and automatic machineguns. Meanwhile, a mortar shell hit a residential area of Malangyar, Safi town. As a result a person was killed.