Two robbers were killed while two others managed to flee after encounter with police here on Sunday morning. According to police, a gang of four robbers was fleeing after snatching bike from a citizen when police chased and approached them in Hamidpur Kanwra area of Multan. The robbers started firing at police which led to an encounter. In retaliatory firing of police two robbers were killed while their two accomplices managed to flee the scene.