Russia's central bank on Friday said it was suing the Belgium-based Euroclear financial group, which holds Moscow's frozen international reserves, as the EU moves closer to using the funds to support Ukraine.The European Commission is pushing to tap some 200 billion euros ($232 billion) of the Russian central bank's assets that the bloc immobilised after Moscow's 2022 assault on Ukraine, in order to provide Kyiv a financial lifeline.The EU is determined to reach a final deal at a summit next week, but faces resistance from Belgium, which as the home of Euroclear fears retribution from Moscow.On Friday, Russia's central bank...