Kiev's new leaders are due to unveil a unity cabinet tomorrow, following the dramatic ouster of pro-Russian president Viktor Yanukovych following months of protests after he rejected an association agreement with the EU.
The three foreign ministers "will travel tomorrow late afternoon to Kiev, and hopefully when the new government in Ukraine is formed then they will meet the new government," Hungarian foreign ministry spokesman Gabor Kaleta told AFP.
"If not then they will meet the Rada (parliament)," he added.
Details of the trip were still being finalised, but after Kiev, the three were expected to fly to the eastern city of Donetsk, "most probably to meet representatives of the Russian community," Kaleta said.
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Martonyi and Zaoralek were also planning to visit Transcarpathia, a region with a strong ethnic Hungarian minority.
Yesterday, Hungary's foreign ministry raised concerns about alleged violence against the minority by Ukrainian far-right group Pravy Sektor.
World powers have been seeking to ease tensions over Ukraine as the country's interim authorities grapple with the threat of economic collapse and separatism after Yanukovych fled Kiev following a week of carnage in which nearly 100 people died.