"I expect from President Petro Poroshenko and Prime Minister Volodymyr Groysman that people who openly proclaim nationalistic and anti-Polish views will not occupy important positions in Ukrainian politics," Duda said, according to Radio Poland.

According to him, some of the Ukrainian high-ranking officials adhere to anti-Polish views.

"It is also necessary to speak about it out loud – there are people in very important offices in Ukraine who practically have openly anti-Polish views; this is unacceptable," Duda stressed.

Read alsoPolish FM urges Ukraine to "take concrete steps" amid tensions over history - Radio PolandAs UNIAN reported earlier, Polish Foreign Minister Witold Waszczykowski suggested that Poland and Ukraine "have different approaches to reconciliation". At the same time, he said he was pleased to hear the Ukrainian foreign ministry’s notion there is no general anti-Polish sentiment in Ukraine.