Supreme leader says 'vicious acts' will not go unanswered, also declares Tehran will further breach 2015 nuclear deal

Tehran gives Europe 60 days to save faltering agreement; its atomic agency suggests enriching uranium to 20% in next stage of reducing commitments to 2015 pact

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

As war of words escalates and after White House targets top officials, supreme leader blasts 'sinister' American government

US president's pronunciation of Ali Khamenei's name sounded to some suspiciously close to the Islamic Republic's founder, Ruhollah Khomeini

Aide to supreme leader warns his country can 'totally obliterate' US bases in the Gulf

Iranian president denounces sanctions against foreign minister Zarif; military spokesman says Washington ruptured path of diplomacy by also targeting supreme leader Khamenei

Trump describes move as 'strong and proportionate' response to Tehran downing an American drone, will add FM Zarif to list later this week

Head of IRGC aerospace force says army deliberately avoided targeting jet that accompanied drone, claims 2 warnings were given before UAV was destroyed