German authorities say seized superyacht belongs to sister of Russian oligarch Alisher Usmanov

The luxury yacht Dilbar lies completely covered in the Blohm+Voss dock Elbe 17 in Hamburg, Germany (Jonas Walzberg/dpa via AP)

German authorities said they have seized a massive superyacht in Hamburg after determining that it belongs to the sister of Russian oligarch Alisher Usmanov.

The Federal Criminal Police Office said that, after “extensive investigations” and despite “offshore concealment”, it had been able to determine that the owner is Gulbakhor Ismailova, Mr Usmanov’s sister.