Hungary wants the European Union to intervene in a gas dispute it has with Ukraine, a potential sign of friction in the bloc’s upcoming discussions over renewing sanctions against Russia.

Hungary has not yet decided whether to support the sanctions rollover due at the end of this month. The EU renews sanctions every six months and requires unanimity among its 27 member countries to do so.

As well as transiting Azerbaijani gas and exporting its own domestic reserves, Turkey imports fuel from Russia via the TurkStream pipeline under the Black Sea. After the Kremlin's agreement with Ukraine ended on Jan. 1, the underwater link is the only remaining route for Moscow to ship supplies to Europe.

Hungary's representatives have not yet agreed to a decision on the extension of EU sanctions against Russia. The issue will be considered at an EU Council meeting at foreign minister level on Monday,