"Poland's charge d'affaires provided explanations about the conference and said it was not anti-Iran", the agency added.
Pompeo told Fox News that dozens of countries would attend the summit which would aim to "build out the global coalition" opposed to Iranian policies in the region.
The statement quoted an unnamed Iranian official as saying that if the summit goes ahead, Iran will resort to unspecified "counter-action" toward Poland.
After Pompeo's announcement, Zarif said Friday on Twitter that the conference would bring shame on the Polish government and invoked how during World War II Iran saved Polish lives.
Relations between Tehran and Washington are highly fraught after the decision in May by US President Donald Trump to withdraw from a 2015 nuclear deal between Iran and world powers and to re-impose sanctions, including those on Iran's oil sector.
US Secretary of State Mike Pompeo at the ministry of foreign affairs in Cairo on January 10, 2019.
On Friday, U.S. Secretary of State Mike Pompeo announced that the U.S. and Poland will jointly host the Ministerial to Promote a Future of Peace and Security in the Middle East in Warsaw from February 13-14 with a focus on Iran. But the gathering will take place in a lesser renowned location than usual - Warsaw. "And Iran is stronger than ever", Zarif wrote on Friday. He'll also be promoting a USA -backed initiative to form what some have termed an "Arab NATO" that would bring the region together in a military alliance to counter threats from Iran. The US president has since ordered a review of the costs of American troops being stationed in Germany, a sign that he may pivot to eastern Europe.
Polish Foreign Minister Jacek Czaputowicz appeared unfazed by a backlash from Tehran, however, saying in a statement that while his country supported the EU's efforts to maintain the nuclear deal, the agreement "does not stop Iran from activities destabilising the region" and he hoped the conference would bring closer the European Union and United States positions. It has vowed to increase the pressure until Iran halts what United States officials describe as its "malign activities" throughout the Mideast and elsewhere, including support for rebels in Yemen, anti-Israel groups, and Syrian President Bashar Assad.