Radoslaw Sikorski sent a diplomatic note to the ambassador on Friday, saying he was "not welcome" at the opening event of Poland's EU presidency.
Commenting on Polish Foreign Minister Radoslaw Sikorski's decision to declare the Hungarian ambassador to Poland persona non grata at the opening event of Poland's EU presidency, Péter Szijjártó, Minister of Foreign Affairs and Trade, said the decision was "pathetic and childish".