The summit was announced last week by US Secretary of State Mike Pompeo, who said dozens of countries would participate.
They will "focus on Middle East stability and peace and freedom and security here in this region, and that includes an important element of making sure that Iran is not a destabilising influence," he told Fox News.
Poland's representative in Iran, Wojciech Unolt, reportedly said the conference, to be held February 13-14 in Warsaw, was not anti-Iranian and that Poland did not share recent remarks by the US against Iran.
Iran poured scorn on the meeting and pointed out that the country, then impoverished after invasion by Britain and the Soviet Union, welcomed more than 100,000 Polish refugees during World War II.
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