The Hungarian diplomat said, "the EU crossed a red line" by using 1.4 billion euros of revenue to finance arms supplies to Ukraine, when "in fact Hungary did not want this and a unanimous decision would have been needed".

Sijjártó complained that "military fervor has blinded decision-makers" in the EU and warned that the Hungarian side was already exploring "legal possibilities" to challenge them.

He also said such decisions on Ukraine posed a long-term risk to the functioning of the EU.

At the same time, commenting on the adoption of the 14th package of sanctions against Russia, Szijjártó said Hungary did not veto it because the measure does not harm the country's national interests or threaten its energy security, although it is "a continuation of a strategy that has proven to be a complete failure".

• Politico reported earlier that EU countries approved the first tranche of up to 1.4 billion euros in military aid to Ukraine, which will come from the proceeds of frozen Russian assets, through the Ukraine Assistance Fund (UAF). The EU Council's legal service stated that Hungary cannot stop this funding because it abstained during a vote earlier this year in favor of creating the UAF, and the funds do not come from EU taxpayers.