Khamenei says Vienna offers 'not worth looking at' after hiking uranium enrichment in response to alleged Israel attack on Natanz plant, with tensions skyrocketing

European official says Tehran 'puts pressure on everyone' by accelerating uranium enrichment at Natanz; FM Zarif says 'no alternative' to lifting sanctions

UN agency confirms Natanz facility will begin increasing operations shortly, days after sabotage said to have damaged thousands of centrifuges

IAEA says inspectors ‘are continuing their verification and monitoring activities in Iran,’ days after reported attack on facility

As negotiations thrown into disarray following Natanz facility sabotage, supreme leader Khamenei warns the US time could be running out

Britain, France, and Germany say move is 'a serious development' amid ongoing negotiations to revive 2015 nuclear deal

Iranian envoy to UN atomic agency says Islamic Republic will start enriching at previously unseen levels by next week

Admission of scale of damage at Natanz casts doubts on Tehran's ability to ramp up uranium enrichment to 60%, as threatened; Israeli report says whole plant still out of commission

Former prime minister denies any direct knowledge of operation, but blames Netanyahu for 'smug bragging' amid spate of leaks crediting Mossad spy agency for incident at nuke plant

US condemns Tehran's 'provocative' announcement it'll increase uranium purity to 60%; Israeli analyst: With Natanz out of commission, enrichment at those levels will be limited