Speaking to reporters following talks in Budapest with Slovak Prime Minister Robert Fico, Orban said the EU should continue to provide financial assistance to Kyiv.
"I think that we should help Ukraine, but in such a way as not to harm the budget of the European Union," TASS quoted Orban as saying.
The Hungarian prime minister added that, in his opinion, financial assistance to Ukraine can be provided at the expense of "extra-budgetary sources" of the EU.
Earlier, Deputy Prime Minister and Minister of Finance of Belgium Vincent van Peteghem said that the EU had begun work on the use of income from Russia's frozen assets in the interests of Ukraine.