Iran's uranium enrichment level has passed 4.5 percent, exceeding the cap set by the 2015 nuclear deal.
Turkey's President Erdogan says that he is open to mediating talks between Washington and Tehran to deescalate tensions and find a common ground to solve the problems.
Iranian President Hasan Rouhani declares that Iran will no longer honour the terms of its nuclear research and development programme, following previous violations of the 2015 nuclear deal.
"Europeans are not in a position to criticise Iran for issues outside the JCPOA," state broadcaster quotes Iranian Foreign Minister Javad Zarif.
Contrary to what the nuclear deal's critics say, it was a stabilising force in the region and the Middle East needs it.
"No talks will be held with the Americans and the Americans will not dare take military action against us," Yadollah Javani, the elite force's deputy head for political affairs, was quoted as saying by Tasnim news agency.
The 28-member bloc failed to sway US President Donald Trump over his eventually successful attempt to withdraw Washington from the deal, leaving an opening for China to become more influential in Iran.
President Rouhani’s centerwing government says it will not be part of a pact that hasn’t even been implemented by other signatories.
A six-month US waiver on Iran's sanctions, which allowed Turkey and other nations to continue buying oil from Iran, expires on May 2.
The entity, INSTEX, will allow EU companies to trade with Tehran despite US sanctions after President Trump pulled out of 2015 nuclear deal.
Amidst the controversy surrounding Iranian nuclear chief's statement on uranium enrichment breakthroughs, speculation surrounds Iran's next steps. Will Iran withdraw or violate its nuclear agreement?
A top official at Iran's Atomic Energy Organisation says Tehran has no reason to stick to the deal if it continues to suffer on the economic front.
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