PM rebuffs Iranian foreign minister's claim that alleged spying operation is just 'Zionist lies'; proof 'is here in my hands,' he says

Tehran has amassed more than 3,800 kilos of material, IAEA reports after detecting radioactivity at potential undeclared nuclear sites

WSJ reports that Iranian intelligence secured internal documents from UN nuclear watchdog allowing Tehran to evade inspections; details uncovered in archive Israel seized from Iran

IAEA head Rafael Grossi says Tehran has refused to clarify evidence of illicit uranium enrichment, as EU's Mora heads back to Iran in bid to get nuke talks back on track

International Atomic Energy Agency confirms machines moved to Natanz for better protection, after sabotage blamed on Israel at several plants

Rafael Grossi says UN agency also working to clarify Tehran's response to findings of traces of enriched uranium at three sites across Iran

Atomic energy agency says strike could have caused 'catastrophe'; UN atomic watchdog says Chernobyl radiation levels normal again after 'very, very dangerous' takeover by Moscow

Installation of IAEA surveillance equipment, which will monitor production in facility at Natanz site, comes amid Western efforts to restore the nuclear deal with Tehran

Head of country's Atomic Energy Organization blames Israel for 'sowing doubts' about the nature of the Islamic Republic's nuclear program

'We must act now to help prevent the danger of a nuclear accident,' IAEA's Rafael Grossi says following Russian capture of several facilities