"If you cannot get such a strong guarantee from them, and I see it very unlikely that you can, we could not move and continue like this anymore".
As the fall-out from Mr Trump's decision continues, Iran has called on European plane manufacturer Airbus to say whether it will stick to a deal to sell it almost 100 airliners.
Labour accused the president of a "reckless, senseless and immoral act of diplomatic sabotage". "I have instructed the Iranian Atomic Energy Organisation to take the necessary measures for future actions so that if necessary we can resume industrial enrichment without limit", he said in an address to the nation.
A watchdog has reported nine times that Iran had complied with the terms of the agreement, he added.
President Donald Trump on Tuesday signaled the end of the USA role in the Joint Comprehensive Plan of Action, saying a U.N. -backed deal that limited Iranian nuclear activity was no longer in the nation's interest.
It also further isolates Trump on the global stage, where he has angered even the staunchest USA allies by reneging on USA commitments to the Paris climate accord and pulling out of the Trans-Pacific Partnership trade agreement. "It didn't bring calm".
"We will respect the capacity of individual countries to make their decisions about foreign policy".
Two cases of Ebola confirmed in Democratic Republic of Congo
NAN reports that in the 2014 to 2015 outbreak, 11,000 people died, mainly in Sierra Leone, Guinea, and Liberia. This is the ninth Ebola outbreak recorded in the Congo since 1976, when the disease was discovered there.
Iran's supreme leader Ayatollah Ali Khamenei said Iran too should quit the nuclear deal unless Europeans offer solid guarantees that trade relations would continue.
The government backlash reflected broad public anger in Iran over Trump's decision, which threatens to destroy the landmark agreement.
In Iran, many are deeply concerned about how Trump's decision could affect the already struggling economy.
New Zealand exported $120 million of goods to Iran past year, with dairy products making up three-quarters of that.
Iranian lawmakers set a paper U.S. flag on fire at parliament on Wednesday morning, shouting, "Death to America!".
The deal came together after years of painstaking work and global collaboration - first in developing a united front of crippling sanctions against the Iranian regime to bring the nation to the bargaining table, then years of multilateral negotiations with Iran, the European Union, China and Russian Federation.
Trump also won some support in the Arab world for his withdrawal from the deal.