The United States plans to impose "major" additional sanctions on Iran, to prevent the regime from developing nuclear weapons.
That's according to President Donald Trump on Saturday, speaking to reporters outside the White House.
Trump said the extra sanctions will go into effect Monday, saying that Iran "cannot have a nuclear weapon."
He said once the Iranian government "agrees to that," they will be "wealthy" and "happy" and he would be their best friend.
This comes after the U.S. leader reportedly ordered, then, cancelled a strike on the Middle Eastern country, in retaliation for the downing of an American drone.
Meanwhile, Tehran says it will begin the second phase of measures to scale down its commitments under a 2015 nuclear deal.
It has also threatened to breach limits on uranium enrichment, if EU governments do not make efforts to salvage the agreement.