Iranian President Ebrahim Raisi said that "talks are on the agenda, but not talks for the sake of talks, or negotiations for the sake of negotiations".
US President Joe Biden and Israeli PM Naftali Bennett are set to hold their first face-to-face meeting in Washington during which Bennett plans to persuade Biden not to return to 2015 Iran nuclear accord.
The Islamic republic has also built a 1,000-km pipeline to carry its oil from Goreh, in the southwestern Bushehr province, to the new terminal in the country's southeast.
Guterres' appeal to Washington comes amid talks to revive the Joint Comprehensive Plan of Action, under which Iran accepted curbs on its nuclear programme in return for a lifting of many foreign sanctions against it.
UN nuclear watchdog says it had received no reply from Tehran over the possible extension of a temporary agreement, covering inspections at Iranian nuclear facilities, which expired on Thursday as nuclear talks crisis looms.
The Bushehr shutdown comes as Tehran and world powers attempt to revive a hobbled 2015 agreement on Iran’s nuclear programme in Vienna talks, which, an EU negotiator says, are moving “closer to a deal”.
Decision follows IAEA Director General Rafael Mariano Grossi meeting with Iranian civilian nuclear programme chief Ali Akbar Salehi, as negotiations continue in Vienna to see if Washington and Tehran can re-enter the 2015 deal.
The US has lost its bargaining power with Iran, and its allies have lost faith in its ability to influence the Middle East.
Under the Biden administration, various normalisation efforts have started across the region, ranging from Turkey-Egypt rapprochement, to Iran-Saudi talks.
Blinken and Raab, top diplomats of US and UK, discuss an array of subjects, such as sanctions on Russian citizens, climate crisis and Biden's decision to withdraw US troops from Afghanistan, in London ahead of G-7 conference.
Could the leaked Javad Zarif tape end up inadvertently giving centrists and reformists a greater chance in the upcoming elections?
The two rivals held first direct talks in years, but experts say several sticking points remain.
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