Russian leader invites PM to visit Moscow next year to mark 75th anniversary of the end of World War II

Defense minister calls Britain's seizing of oil tanker off Gibraltar 'piracy,' contrary to international regulations and nuclear deal commitments

Apparent violation of the pact comes a week after Tehran announced it had exceeded its caps on stockpiling low-enriched material

Tehran claims increase for "peaceful' purposes, accuses US and Europe of breaking nuke deal commitment, but move likely to further ratchet up tensions

As accord teeters, Iranian president says Tehran will move to refine radioactive element beyond 2015 deal's 3.67% cap

Macron demands Tehran reverse its decision to violate nuclear deal, China 'regrets' Iranian move, but blames Trump

US national security adviser warns only purpose of increased production of enriched material is to reduce breakout time needed to produce nuclear weapons

Israel Katz says Tehran will suffer heavy blows in a conflict, Israel could act alone against nukes if needed

Fars news agency cites 'informed source' as saying stock of 3.67% enriched uranium was measured and found to be over 300-kg maximum

Tehran's UN envoy says even if Islamic Republic violates key provision of 2015 pact, it could reverse move quickly; up to Europe to show 'tangible results'