KHYBER AGENCY - As many as 20 militants have been killed while 110 suspected persons were arrested so far during the on-going forces action in the last two weeks in tehsil Bara, sub-division of Khyber agency, sources said on Thursday.The sources said that military search and clearance action against miscreants continued in different parts of Bara, since last two weeks.  At least 20 militants were killed and 110 suspected persons had been arrested on bases of connections with militants groups, sources said. A huge quantity of arms and ammunition was recovered while several vehicles used by militants impounded during the search operation, the sources added.