Encounter between militants and government has started on Friday in the same area of north Kashmir's Manigah, in Kupwara district where a few days ago an army colonel was killed.Police sources said that 3 to 4 militants are hiding in the Manigha Haihama in Kupwara.They said that army men of 4 Para, 41 RR and SOG Kupwara are on job.They added that contact with the hiding militants was established early today and a fierce gunfight was going on.