Iran will not cooperate more fully with atomic inspectors until a standoff over its nuclear deal is resolved, Reuters quoted its UN envoy as saying
This comes as France warns Tehran against moving ahead with preparations to boost its uranium enrichment capacity.
Tehran meanwhile signaled its resolve to expand its enrichment capability by detailing plans to build advanced centrifuges - the machines that enrich uranium.
U.S. Secretary of State Mike Pompeo said on Twitter that Washington was aware of reports Iran plans to increase its uranium enrichment and he vowed not to allow Tehran to develop a nuclear weapon. “Iran is aware of our resolve,” he said.