Her conversations The European Union to give Ukraine 50 billion euros in financial aid have become “more complicated” as Hungary has shown no flexibility ahead of next week’s summit on the issue, a senior EU official said today.

The Hungarian Prime Minister Viktor Orban blocked the EU budget review that includes aid to Ukraine at a summit in December. EU leaders will again try to reach an agreement on the package at another summit next Thursday.

The Orbán government has strained relations with Ukraine. The Hungarian leader maintains close ties with Russia and refused its support when EU leaders gave the go-ahead to start accession negotiations with Kiev at a summit in December.

“The negotiation is getting a bit more complicated … Hungary’s position has not really been flexible on this,” said the senior EU official, speaking on condition of anonymity.

The official, who is involved in preparations for the summit, added that there is growing frustration with Hungary among other EU member states that want to give more aid to Ukraine.

The official said some ideas proposed by Orban – such as making aid to Ukraine subject to unanimous approval each year – were not acceptable to the other EU members.

“No member state wants to get into a situation where you have to go through unanimity to provide support to Ukraine,” the official said.

Although Reuters sources say consultations are difficult because of Hungary’s position, Ukrainian Prime Minister Dennis Schmihal he made much more upbeat statements today, the BBC’s Russian service reports.

According to the Interfax-Ukraine news agency, during a cabinet meeting, Smikhal expressed hope that the 50 billion euro aid package for Kiev would be approved during the February 7 summit.

“Preliminarily, we can say that all 27 EU members have agreed to support this program,” Schmihal said.