Strike on uranium enrichment facility adds uncertainty to indirect talks that resume Tuesday in Vienna, with both sides likely to harden their positions

Defense minister says he told his visiting American counterpart that a new agreement with Tehran must be 'more robust' than the 2015 accord

Defense minister requests attorney general look into intelligence officials quoted by Israeli, foreign press on strike at Iran's Natanz nuclear site

Germany says reported sabotage at facility 'not positive' for negotiations in Vienna, as sides set to reconvene Tuesday

Efraim Halevy says potential retaliation by Tehran dependent on its upcoming elections, nuclear talks with US; adds Iran has means to hit Israel that it hasn't previously used

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

Israeli outlets say blackout at Iran's Natanz plant a likely Israeli cyberattack; Western intelligence sources estimate it shut down entire sections of the facility

State TV provides few details about electrical problem; on Saturday, Rouhani inaugurated cascades of IR-6s and IR-5s at same plant, in open breach of nuclear deal