At least four militants were killed Friday in a clash with security forces in Swat. The encounter occurred during a search operation in Kanju where hundreds of local residents have constituted a tribal lashkar and engaged in a clearance operation in cooperation with forces to wipe out the militants from their area. Moreover, a key militant commander Abdul Akbar along with one of his brothers was arrested in a raid by security forces in Koza Bandai. Meanwhile, curfew was relaxed in Mingora, Kabal, Charbagh and Khuwaza Khela till 11:00 tonight.