A superyacht belonging to Russian oligarch Alisher Usmanov was seized by German authorities in Hamburg on Wednesday, according to Forbes. The German government has frozen the Dilbar, Usmanov’s 512-foot yacht, the publication said, citing three unidentified industry sources. Built in 2016 and named after his mother, the boat is estimated to be worth $594 million, […] Read the full story on GreekReporter.com.