KIEV, Jan. 29 – The materials for filing claims to international courts by Ukraine against Russia's violation of the UN Convention on the Law of the Sea due to the annexation of Crimea have been drawn up and only the political decision of President Petro Poroshenko is left to launch the process, Deputy Foreign Minister for European Integration Olena Zerkal said.

"In October 2015, the Ukrainian delegation proposed that consultations are held with Russia, but there is still no response. This does not stop us in preparing the claim. We've been doing this recently. Now we're at the final stage of the preparations," she said in an interview with ZN.UA (Dzerkalo Tyzhnia. Ukraine).