Srinagar, Sep 11 (UNI) Four heavily armed militants were killed when alert troops foiled yet another infiltration bid from Pakistan occupied Kashmir (PoK) in the frontier district of Kupwara early this morning. Defence Ministry spokesperson Colonel N N Joshi told UNI that troops guarding the Line of Control (LoC) noticed a group of militants sneaking into this side from PoK under the cover of darkness. However, when challenged and asked to surrender, the militants resorted to indiscriminate firing with automatic weapons. The troops also retaliated and killed four militants, he said, adding four AK 47 rifles have been recovered from the encounter side. The infiltration bid came just two days after Army Chief General Dalbir Singh visited forward areas to review the situation on the LoC. UNI ABS ADG PM1254