British Foreign Secretary James Cleverly announces travel ban and assets freeze on four individuals and Iran's Islamic Revolutionary Guard Corps "in its entirety".
US State Department describes Iran's nuclear programme as an urgent challenge, saying Washington has a solemn commitment that Tehran will never acquire a nuclear weapon.
Iran expresses its readiness to provide further information and access in connection with an investigation into uranium traces at undeclared sites.
UN nuclear watchdog chief Rafael Grossi is in Tehran amid deadlock in negotiations on reviving a landmark 2015 accord on Iran's nuclear activity.
Saudi Foreign Minister Faisal bin Farhan says that if Iran gets an operational nuclear weapon, “all bets are off”.
EU foreign policy chief Josep Borrell says Iran gave a reasonable response to the bloc's proposal to revive the 2015 nuclear accord, which he hopes the US will also respond positively to as early as this week.
Iran is seeking assurance from the Biden administration that a future US government will not go back on the nuclear agreement.
The Iranian response has been received and the EU is consulting with the US and the other parties "on the way ahead," a spokesperson for EU foreign policy chief Josep Borrell says.
Analysts predict Iran could boost its oil exports by 1 million to 1.5 million barrels per day, or up to 1.5 percent of global supply, in six months, following international efforts to revive the 2015 nuclear deal.
Officials from world powers and Iran are meeting in the Austrian capital for the first time since March, when negotiations — which began in 2021 to reintegrate the United States into the agreement — stalled.
A fresh round of nuclear talks between Iranian and American diplomats has begun with a range of issues clouding the future course of these negotiations.
Joe Biden delivers tough talk on Tehran’s nuclear ambition, but takes a different approach from Israel as he begins his four-day Middle East tour.
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