Police have arrested two suspects and are continuing to search for a third man following a service station robbery at Mount Barker overnight. Just before 1am, two men entered the BP service station on Adelaide Road and threatened the console operator while a third man stood in the doorway. One of the suspects was allegedly armed with a knife. The suspects fled on foot with an amount of cash and cigarettes. The victim received a small cut to his forearm.  Today, detectives arrested a 19-year-old man and a 17-year-old youth, both from Mount Barker, and charged them with aggravated robbery. Both have been refused police bail and will appear in the Mount Barker Magistrates and Youth Court, respectively, tomorrow. – See more at: http://www.sapolicenews.com.au/more-news/17476-service-station-robbed-overnight-at-mount-barker.html#sthash.n2WLkGTH.dpuf