“When one who pushes for sanctions with maximum pressure ends up with (holding a) conference and congress, it means that they have failed in their bid (to undermine Iran),” Shamkhani told reporters on Saturday.
His comments came after US Secretary of State Mike Pompeo announced on Friday that the US plans to jointly host a global conference against Iran next month in Poland.
The meeting will take place in Warsaw on February 13-14.
Iranian Foreign Minister Mohammad Javad Zarif has denounced the planned event as a “desperate anti-Iran circus.”