The shipbuilder, which is owned by Ukrainian Kostyantin Zhevago, was "seized" last month following Russia's annexation of Crimea.

It said: "In connection with a corporate raid on the Zaliv shipyard and the lack of response from the law enforcement agencies in the Crimea and the Russian Federation to the initial complaint filed by the management and shareholders of the shipyard, lawyers for the shipyard have prepared lawsuits in courts of the Crimea, the Russian Federation, and the United Kingdom (the location of the main shareholder of the Zaliv shipyard)."

Management