Warzecha, a commentator for the right-wing weekly Do Rzeczy and a well-known critic of the government in Warsaw, thanked Polish diplomats for their help, Wewiór said.
"Both the Ministry of Foreign Affairs and our embassy in Kyiv intervened in his case," Wewiór wrote on X.
He added that, "regardless of attempts to use the matter politically," the ministry's priority was that Warzecha was a Polish citizen.
Wewiór said diplomats had intervened while Warzecha was at the border and continued to work on the case after he returned to Poland.
Warzecha said on Monday that Ukrainian border guards had seized his passport and questioned him about the purpose of his visit.
After seven hours, he was told he had been banned from entering Ukraine for three years, according to his account.
Warzecha had been due to take part in a study visit to Kyiv organised for Polish journalists by the Warsaw-based Mieroszewski Centre and the Kyiv-based Ukrainian Institute, which operates under Ukraine’s foreign ministry.
On Tuesday, Krzysztof Bosak, a deputy Speaker of Poland's lower house of parliament and leader of the far-right Confederation party, wrote to Polish Foreign Minister Radosław Sikorski requesting "urgent intervention" over what he called the "scandalous treatment" of Warzecha.
Bosak said Ukrainian authorities had cited "alleged security reasons" for the entry ban and called for an explanation.
He also said he expected Polish diplomacy to be "as effective in this case" as it was in "pursuing Ukraine’s interests."
(sp/gs)
Source: PAP