Mohammad Javad Zarif said on Monday that the USA "cannot expect to stay safe" after launching its economic war.
German Foreign Minister Heiko Maas will visit Iran this week, during which he will explore options for preserving the fraying nuclear non-proliferation pact.
Tensions between Tehran and Washington and its allies in the Persian Gulf have flared up in recent weeks, with the United States beefing up its military presence in the Middle East, citing "imminent threats" from Iran. The crisis, he said, stems from US President Donald Trump's decision over a year ago to withdraw America from Iran's 2015 nuclear deal with world powers.
Washington tightened sanctions from the start of May, ordering all countries and companies to halt all imports of Iranian oil or be banished from the global financial system. This decision was meant to bring Iranian oil exports to zero, denying their government its main source of revenue.
Iran´s President Hassan Rouhani met Maas and called on the Europeans to "undertake concrete and serious actions" to "safeguard" the agreement, according to a statement from his office.
The head of the United Nations atomic watchdog is urging world powers to continue dialogue with Iran to keep it in the landmark 2015 deal aimed at preventing the country from building nuclear weapons.
Nahro al-Kasnazan, an Iraqi sheikh who recently registered several companies in the USA, has openly admitted that he advocates for a "military confrontation" between the United States and Iran, and that he considers himself a viable Iraqi presidential candidate.
Otherwise, Iran has warned it will resume enriching uranium closer to weapons-grade levels.
Iran has already bought S-300 surface-to-air missile defence system from Russian Federation.
Friday's sanctions are part of the administration's "maximum pressure" campaign against Iran and freeze any assets the targeted firms may have in US jurisdictions and bar Americans from doing business with them.
European Union efforts to overcome USA sanctions and continue trading with Iran have been hindered by the reliance of worldwide trade on the United States dollar.
What have the IAEA said?
But Mr Amano declined to specify by how much and said it was not clear when the stockpile limit would be exceeded. "It is essential that Iran fully implements its nuclear-related commitments" under the deal. Iran's national currency, the rial, is now trading at almost 130,000 to $1.
"We had an accord until 2025 and we want to go further and have full certainty in the long run".
"We won't be able to do miracles, but we are trying as best as we can to do prevent its failure", Maas said. But the mechanism - known as Instex - is not yet operational.
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