The Hungarian government has said it "rules out" taking "a step alone" to veto a Brexit delay, apparently quashing the idea that the country might help UK prime minister Boris Johnson by refusing to accept an extension to the deadline.

Zoltan Kovacs, secretary of state for international communication and relations, told CGTN: "The Hungarian government has not made a decision yet concerning a veto of the further delay of Brexit.

"Hungary's prime minister, similarly to the other heads of government, is free to decide as far as yet another potential Brexit delay is concerned. But we rule out the possibility that Hungary would take a step alone in this issue."

UK Brexiteers have suggested Johnson could try to persuade Hungary's far-Right prime minister Viktor Orban to oppose an extension to the current Brexit deadline, after the UK parliament passed a bill that legally forces the prime minister to seek a further delay from the EU to avoid leaving the bloc without a deal.

All 27 remaining EU member states would have to agree to push back the exit date past 31 October.

Other Hungarian ministers have also indicated the country will not go against a joint European Union decision. Foreign minister Peter Szijjarto said on Tuesday it was "very important" the EU maintained unity over Brexit.

Szijjarto said after a meeting with his Indonesian counterpart it was pointless to speculate about what the EU position will be, because the UK's Johnson has not yet presented a "new initiative" on Brexit.

Johnson insists he will not request an extension from the EU to the current deadline and says Britain will leave on the scheduled date "with or without a deal."