Iran must stop repeatedly overstepping a limit on its stock of a sensitive material set by its landmark deal with major powers, the UN nuclear watchdog said.
"It is important that such situations should be avoided in future in order to maintain international confidence in the implementation of the JCPOA," IAEA chief Yukiya Amano said in the text of a speech to his agency's Board of Governors.
"Iran has made preparations to transfer a quantity of heavy water out of the country," Amano said, without saying when the transfer would take place. "Once it has been transferred, Iran's stock of heavy water will be below 130 metric tonnes."
The International Atomic Energy Agency (IAEA), which is policing the deal, said in a report last week that Iran had slightly exceeded the 130-tonne soft limit on its stock of heavy water for a second time since the deal was put in place in January, Reuters reports.
Officials from the six other countries that signed the deal, including the United States, have expressed frustration over the breach and said the limit should be seen as firm.
