Iran dismisses US call to return to nuclear deal first
The administration of new US President Joe Biden on Wednesday confirmed its willingness to return to the deal, which has been hanging by a thread since his predecessor Donald Trump's decision to withdraw from it in 2018.
Iran's top diplomat, Mohammad Javad Zarif, on Thursday dismissed the demand.
"Reality check for @SecBlinken: The US violated (the) JCPOA," Zarif tweeted, referring to the accord by its formal name, the Joint Comprehensive Plan of Action.
Zarif said that as well as its unilateral withdrawal, the US had also imposed sanctions that "blocked food/medicine to Iranians" and "punished adherence" to a UN resolution.
"Now, who should take 1st step? Never forget Trump's maximum failure," the foreign minister added, stressing Iran had "abided by the JCPOA" and had only taken "foreseen remedial measures".
On January 4, Iran announced it had stepped up its uranium enrichment process to 20 percent purity, far above the 3.67 percent level permitted by the deal, but far below the amount required for an atomic bomb.
It has said it will return to full compliance once all parties to the accord fullfil their commitments to the agreement.