In interviews, Pompeo stressed the desire of America and its Gulf Arab allies to turn the economic screws on Iran after Trump's withdrawal - in the face of European opposition - from the 2015 agreement that had restricted Tehran's nuclear program in exchange for sanctions relief. However, Iran was now "treating us with much more respect right now, than they did in the past", Trump added.
"The allegation by U.S. Secretary of State Mike Pompeo are baseless, preposterous and part of a targeted propaganda campaign and psychological warfare against the activities of the Iranian embassies overseas", Qasemi was quoted as saying. He also alleged that Iran had used its embassies to plot terror attacks in European Union countries.
"A plot by the religious dictatorship ruling Iran to carry out a terrorist attack against the grand gathering of the Iranian Resistance in Villepinte was foiled", Shahin Gobadi spokesman for NCRI said in a statement.
Pompeo on Tuesday accused Iran of using its embassies to plot terrorist attacks in Europe.
The US has warned third countries against buying Iranian crude as of November 4 amid a rise in Washington's attempts to choke the Islamic Republic oil revenue.
In another post, Pompeo said "Iran continues to send weapons across the Middle East, in blatant violation of UN Security Council resolutions. We have seen this malign behavior in Europe", Pompeo told Sky News Arabia.
"Iran's regime wants to start trouble wherever it can. It's our responsibility to stop it".
Trumps calls the European Union a foe of the United States
Trump will take part in a one-on-one summit with Russian President Vladimir Putin in Helsinki, Finland, on Monday. Trump repeated his previous assertion that the European Union has "really taken advantage of us on trade".
They had allegedly planned to bomb the rally by an exiled Iranian opposition group in Villepinte near Paris that was attended by several U.S. politicians.
Assadi was detained earlier this month near the German city of Aschaffenburg on a European warrant after the couple with Iranian roots was stopped in Belgium and authorities reported finding powerful explosives in their vehicle.
Germany's federal prosecutor on Wednesday remanded in custody an Iranian diplomat suspected of having been involved in a plot to bomb an Iranian opposition rally in France but said the suspect could still be extradited to Belgium.
Iran denies involvement and contends the allegations against its diplomat are meant to damage its relations with the European Union.
The couple were arrested in Brussels on the day of the rally by Belgian security services who said they found them in possession of 500 grams of the volatile explosive TATP and a detonator.
German prosecutors believe Assadi, believed to be an intelligence agent, ordered the couple to attack the rally and had handed them the explosives at a June meeting in Luxembourg.
Intelligence from inside the regime suggests that "this terrorist act was decided months ago by Iran's supreme leader, the president, foreign and intelligence ministers, the secretary of the Supreme National Security Council, the Revolutionary Guards, the Quds Force, the IRGC's intelligence Organization, and the deputy for political-security affairs of Khamenei's office", according to the National Council of Resistance of Iran (NCRI), the opposition group who hosted the targeted event. The formerly armed group was removed from European Union and USA terrorism lists several years ago after denouncing violence and getting western politicians to lobby on its behalf.