US, Iran chief negotiators to start nuclear talks in Qatar
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"We managed to unblock the process and we are going to move forward, and as a first step at this stage we have these proximity talks," he said in Brussels.
The deal aimed at curbing Iran's nuclear ambitions has been hanging by a thread since 2018, when then US president Donald Trump unilaterally withdrew from it and began reimposing harsh economic sanctions on America's arch-enemy.
US President Joe Biden's administration has sought to return to the agreement, saying it would be the best path ahead with the Islamic republic, although it has voiced growing pessimism in recent weeks.
Earlier Malley met Qatar's Deputy Prime Minister and Foreign Minister Mohammed bin Abdulrahman Al Thani to discuss "joint diplomatic efforts to address issues with Iran", the US embassy in Doha tweeted.
Bagheri and his delegation have arrived in Doha, Iran's IRNA state news agency reported.
It also hosted talks between the United States and the Taliban before the withdrawal of American troops from Afghanistan in August last year.
The Vienna talks began in April last year but hit a snag in March following differences between Tehran and Washington, notably over Iran's demand that its Islamic Revolutionary Guard Corps be removed from a US terror list.
"I always say that the time is not really on our side, so we should really move forward very quickly," Stano said, referring to the Qatar meetings.
"But again, it's not up to the European Union or (Borrell) as a coordinator to determine the tempo because everything depends on the willingness of the participants to find the necessary way forward."