Iran will continue scaling back its compliance with its nuclear deal commitments in the absence of "positive signals" from other signatories to the pact, Iranian President Hassan Rohani told a meeting of Russia, China and other Asia leaders in Tajikistan.
Iran stopped complying in May with some commitments in a 2015 nuclear deal that was agreed with global powers, a year after the United States unilaterally withdrew from the accord and tightened sanctions.
Tehran has said in May that, unless world powers protected its economy from U.S. sanctions within 60 days, Iran would start enriching uranium at higher level.
Earlier this week, the head of the International Atomic Energy Association said Iran has followed through on its threat to accelerate production of enriched uranium, departing from his usual guarded language to say he was worried about increasing tension.
"Yes, (the) production rate is increasing," Yukiya Amano told reporters, citing the latest measurements collected by IAEA inspectors in Iran, when asked if enriched uranium production had accelerated since the agency's last quarterly report, which found Iran compliant with the nuclear deal as of May 20. He declined to say how much it had increased by.