Army foiled an infiltration bid by a group of terrorists along the Line of Control in Poonch district and arrested a Pakistani guide.Official sources said today, during patrolling of the LoC in Kangra gali area in Balakote sector of the district, troops observed movement of ultras around 2130 hours last night. Troops guarding the borderline challenged them and later fired at them.The sources said, there was also firing from across the border which continued for over an hour. Later, troops caught hold of a Pakistan guide identified as resident of Keralay Majan village of Pakistan occupied Kashmir. The ultras fled towards PoK. A major search operation has been launched in the area this morning and the Pakistani guide is being questioned.