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.

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.

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.

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.

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".