Hungarian Prime Minister Viktor Orban threatens to disrupt the December summit of European Union leaders, which will discuss aid to Kyiv and the issue of starting negotiations on Ukraine's accession to the EU, Bloomberg reports.

According to the publication, at a meeting of diplomats last week, Hungary said it wanted to have a "strategic discussion" about the bloc's financial support for Ukraine and how Russian sanctions have affected EU countries before talking about providing additional financial assistance or security commitments.

Hungary is also blocking Ukraine's accession talks and the mid-term review of the EU budget. The publication notes that Orban's confrontational tone suggests that he is no longer concerned about threats to suspend funding from Brussels.

European Council President Charles Michel will visit Budapest today to meet with Orban, but EU officials are preparing for the worst.