Member of powerful Assembly of Experts says Britain should fear retaliation in response to interception of oil tanker suspected of violating EU sanctions

Revolutionary Guards commander says Tehran 'never hesitated in responding to bullies' in response to interception of ship suspected of violating EU sanctions

Iranian foreign ministry denounces interception of ship suspected of violating EU sanctions, accuses Britain of acting at behest of the US

FM Zarif says talk show 'went against national interests' for segment detailing covert delivery of 1m barrels of crude oil to China in defiance of US sanctions

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

'Not good!' US leader adds in tweet, after Tehran announces it has breached limit on uranium stockpile

Tehran says punitive economic measures won't deter it from advancing its nuclear program; citizens feel they are bearing the brunt

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

Scheme allows Iraqis to pay for imported energy in Iraqi dinars, which Iran can then use exclusively to buy humanitarian goods; official says Washington aware of plan

Israel urges European states to sanction Tehran; Russia voices regret, but blames US pressure; UN says Iran must stick to its accord commitments