UN atomic watchdog says just 1 cluster of UF6 machines being used at aboveground part of nuke site hit in blast blamed on Israel; older cascades said being used for 20% enrichment

IAEA records 8 new cascades at underground nuclear site hit in blast blamed on Israel; says Islamic Republic planning to add more

Ali Akbar Salehi, head of country's atomic agency, claims enrichment at key nuclear site never stopped following blast blamed on Israel

Tehran official claims person behind attack identified, will be arrested; FM Zarif also says damage to centrifuges will only enable Tehran to install more advanced ones

Top Israeli officials hint at, but do not confirm, Mossad involvement in apparent cyberattack on uranium enrichment facility, which Tehran calls an act of 'nuclear terrorism'

Alleged Israeli cyberattack said to strike serious blow to Iranian atomic program; security cabinet to meet next week to discuss recent exchanges with Tehran

Country's nuclear agency chief, Ali Akbar Salehi, says it will resume adhering to nuke deal's terms if 'other parties' do so

Day after upping uranium enrichment to 20%, Islamic Republic's atomic chief announces steps to increase production further

Tehran nuclear chief issues warning amid heightened tensions day ahead of one-year anniversary of Soleimani's killing in US drone strike

Ali Akbar Salehi said to be in good condition at home; Tehran announces 251 fatalities in 1 day with nearly 4,500 critical patients, as currency crashes to record low