According to ISPR, security forces conducted an intelligence based operation in Spinwam area in North Waziristan District on reported presence of Khwarij.During conduct of the operation, own troops effectively engaged Khwarij's location and after intense exchange of fire, four Khawarij were killed.Weapons and ammunition were also recovered from the killed Khwarij, who remained actively involved in numerous terrorist activities against the security forces as well as target killing of innocent civilians.The security forces of Pakistan are determined to wipe-out the menace of terrorism from the country.