Talks between European Union countries aimed at agreeing on aid for Ukraine later this week remain difficult, despite Hungary's willingness to compromise.

"We are not there yet," an EU official said on condition of anonymity, referring to preparations for the bloc's 27-member leaders' summit in Brussels on Thursday, as reported by Reuters.

The official stated that the demands Budapest made of the other EU members to lift its veto on the financial assistance to Kyiv were intolerable, as the EU increased pressure on Hungarian Prime Minister Viktor Orbán to consent.

The official went on to say that Hungary's EU colleagues do not want to agree to an annual review of Kyiv's support because it would give Orbán the right to veto the decision every time.

Hungarian Prime Minister Viktor Orbán confirmed that Budapest sent a compromise agreement to Brussels last Saturday, which will unblock €50bn in EU funding for Ukraine.

The Hungarian prime minister revealed that under the compromise, he will agree to release funding to Ukraine "if you guarantee that the decision to continue sending money will be reviewed every year". In practice, this will essentially give Hungary another opportunity to hold up aid every year.

EU leaders will reaffirm their commitment to providing "timely, predictable and sustainable military support" to Ukraine in the future at the 2 February summit.

The main topic of the Brussels summit is an attempt to reach an agreement on a package of four-year financial assistance to Ukraine in the amount of €50 billion, which Hungary blocked at the previous summit in December.

Josep Borrell, Head of the EU Foreign Policy Department, stated on 22 January that Ukrainians should not worry about a possible decrease in EU support.