The United States on Wednesday announced new sanctions targeting Iran's nuclear programme ahead of closely watched talks on the row between the longtime adversaries.
The Treasury Department said it was imposing sanctions under additional authorities on five entities, including the Atomic Energy Organisation of Iran and one individual over the contested nuclear programme.
In practical terms, the move is symbolic as the US already enforces sweeping sanctions on Iran and particularly its nuclear programme, whose scientists have also been the target of an assassination campaign attributed to Israel.
But the sanctions are the latest show of pressure by the US ahead of the talks, which are set to take place on Saturday in Oman.
"The Iranian regime's reckless pursuit of nuclear weapons remains a grave threat to the US and a menace to regional stability and global security," Treasury Secretary Scott Bessent said in a statement, vowing to "disrupt any attempt by Iran to advance its nuclear programme".
Iran denies seeking nuclear weapons and US intelligence has not concluded that Iran is pursuing a nuclear weapon, saying only that the clerical state could quickly make a bomb if it chooses to do so.
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