The pact is underpinned on the US side by a presidential waiver of nuclear-related sanctions on Iran's central bank.
In July 2015, after a decade of strenuous negotiations, Iran and six major countries, namely, China, Russia, Britain, France, the US and Germany, struck a final agreement on Iran's controversial nuclear programme.
"There is no indication today that could call into doubt Iranian respect of the agreement", French Foreign Minister Jean-Yves Le Drian told reporters in Brussels, after a meeting between the Europeans and their Iranian counterpart Javad Zarif.
America's allies see the accord as the best way of thwarting Iran's quest for nuclear arms and a victory for multilateral diplomacy.
The other signatories to the deal - Britain, China, France, Germany and Russian Federation - and the European Union, which oversaw the talks, were watching carefully.
On Friday, Mr Trump agreed to waive sanctions against Iran that were lifted as part of the worldwide deal but said it would be the last time unless conditions were met to fix what he called "significant flaws" in the deal. All sides agreed that it would cover only Iran's apparent efforts to develop nuclear weapons, which was in violation of United Nations resolutions, and not other issues.
Dad asks Knoxville police shooting suspect to surrender
At the time he was pulled over, Wilson was driving a black 1970s model Chevrolet Nova with a red stripe on its hood, Rausch said. Police are seeking an attempted murder warrant against Wilson in the shooting of Williams, Rausch said.
European allies had strongly urged the White House to stick with the nuclear deal, saying a decision to abandon it would strain the transatlantic partnership.
Trump stopped short for a third time of re-imposing harsh sanctions meant to push Tehran to give up its nuclear weapons research.
He paired Friday's concession with other, targeted sanctions on Iran for human rights abuses and ballistic missile development.
The cyber unit of the Islamic Revolutionary Guard Corps, which the Trump administration maintains has stifled social media networks that demonstrators can use to communicate, was also blacklisted. "And if at any time I judge that such an agreement is not within reach, I will withdraw from the deal immediately", he warned.
Washington policy hawks hailed Trump's decision, which they said would concentrate minds in Europe, where leaders have urged the U.S. president not to sabotage a deal they see as a landmark diplomatic success.
"The Chinese side has also noticed that the worldwide community widely supports the Joint Comprehensive Plan of Action (JCPOA), and fully acknowledges Iran's implementation of the pact, " Lu said.
After Tehran had implemented its part of the deal, which was confirmed during IAEA's inspection trips, on January 16, 2016 the USA administration under President Barack Obama lifted sanctions imposed on Iran over its nuclear program.