Hungary has warned it will block the European Union’s new sanctions against Russia and delay a $106-billion aid package to Ukraine unless Russian oil shipments through the Druzhba pipeline are restored.

Hungarian Foreign Minister Péter Szijjártó said Budapest will not approve the EU’s 20th round of sanctions against Moscow while oil deliveries remain halted. The sanctions need unanimous support from all 27 EU member states to take effect.

The Druzhba pipeline, which carries Russian crude through Ukraine to Central Europe, has been interrupted since January 27. Ukraine says the disruption was caused by Russian drone attacks, while Hungary and Slovakia accuse Kyiv of intentionally withholding oil to pressure Central European nations.

Slovakia has joined Hungary in opposing EU measures, even threatening to cut emergency electricity supplies to Ukraine if oil deliveries are not restored. Both countries recently stopped diesel shipments to Ukraine over the supply interruption.

Ukraine’s Foreign Ministry condemned the threats, calling them “provocative and irresponsible” and accusing Hungary and Slovakia of helping Russia. Ukrainian officials warned that these actions endanger the energy security of the region, especially during one of the country’s coldest winters in years amid ongoing Russian attacks on its power infrastructure.

Hungarian Prime Minister Viktor Orbán, known for his close ties with Moscow, has repeatedly argued that Russian energy is essential for Hungary’s economy. He has previously blocked EU sanctions targeting Russia and opposed financial and military aid to Ukraine.

EU foreign ministers are scheduled to meet in Brussels on Monday to discuss the sanctions and the aid package, aiming to reach an agreement ahead of the fourth anniversary of Russia’s full-scale invasion of Ukraine.