RAWALPINDI, (Raja Furqan Ahmed) : Pakistan Army troops observed and engaged terrorist movement in the general area of Datta Khel, North Waziristan District. According to ISPR, during the exchange of fire, four terrorists got killed. Weapons and ammunition were also recovered from the killed terrorists. The killed terrorists remained actively involved in terrorist activities against security forces. According to the sources, the terrorist belongs to the Gul Bahadur group.