NICOSIA, Cyprus – Cyprus' president on Monday sharply rebuked the U.S. ambassador on the Mediterranean island for a tweet he claims linked his visit to Russia to the assassination of opposition figure Boris Nemtsov. Cypriot President Nicos Anastasiades concluded a four-day visit to Russia on Feb. 28, hours after Nemtsov was killed. U.S. Ambassador John Koenig asked on Twitter: "What do people in #Cyprus think about the week in Russia as seen from here? Anastasiades visit and statements, #Nemtsov assassination?"