A row over the end of Russian gas flows via Ukraine has intensified as Hungarian Prime Minister Viktor Orban threatened to block the next rollover of EU sanctions against Russia unless Brussels helps to achieve a restart of supply.

Hungarian Prime Minister Viktor Orbán has once again threatened to veto EU sanctions against Russia in six months if Ukraine does not resume the transit of Russian gas by then, which he claims he was guaranteed to be restored.

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 wants the European Union to persuade Ukraine to resume gas transit from Russia to Europe, Prime Minister Viktor Orban said on Friday, signalling a tough debate as the EU seeks to extend its sanctions against Russia over the coming week.

The European Union (EU) has been placing sanctions on Russia since the beginning of the full-scale war in Ukraine. These sanctions are meant to pressure Russia into stopping its attacks. However, the EU can only continue these sanctions if every country in the group agrees.

Hungarian Foreign Minister Péter Szijjártó, following Prime Minister Viktor Orbán, has declared that Budapest will block the next extension of EU sanctions against Russia unless Ukraine "refrains from measures that harm Hungary’s energy security".

Hungarian Prime Minister Viktor Orban threatened on Friday to block the next rollover of EU sanctions against Russia unless Brussels helps achieve a restart of Russian gas transit via Ukraine, which was halted on Jan.