Iran will begin enriching uranium up to 60% purity after an attack on its Natanz nuclear facility, a negotiator said Tuesday, pushing its program to higher levels than ever before though still remaining short of weapons-grade. The announcement marks a significant escalation after the...

DUBAI, United Arab Emirates (AP) — Iran's foreign minister warned Tuesday that an attack on its main nuclear enrichment site at Natanz affects ongoing negotiations in Vienna over its tattered atomic deal with world powers. Mohammad Javad Zarif's remarks, alongside visiting Russian...

Iran on Monday blamed Israel for a sabotage attack on its underground Natanz nuclear facility that damaged the centrifuges it uses to enrich uranium there, warning that it would take revenge for the assault. The comments by Foreign Ministry spokesman Saeed Khatibzadeh represent the first...

Iran's nuclear program has been targeted by diplomatic efforts and sabotage attacks over the last decade, with the latest incident striking its underground Natanz facility. The attack Sunday at Natanz comes as world powers try to negotiate a return by Iran and the U.S. to Tehran's atomic...