Pompeo submits request to Security Council president, setting stage for showdown in world body that voted last week not to extend arms embargo against Tehran

Hezbollah chief warns Israel he plans game changing revenge attack for fighter's recent death, suggests Beirut port blast investigation could show Israeli role

Tehran's FM says Washington 'must be stopped before disaster' occurs after fighter jet approaches civilian flight; Iran aviation agency calls for probe by international body

Russian FM Lavrov meets his Iranian counterpart Zarif, who hails 2015 pact as a 'historical international agreement'

Iranian FM Zarif insists 'nothing secret' about prospective deal with Beijing, says details will be published once its finalized

Move could pave way for deal's final collapse; Brussels' top diplomat calls for 'intensive efforts' to solve disagreements 'in good faith by all'

Zarif says ready to resolve legal issues and discuss compensation for families of victims on Flight 752, hit by two Iranian missiles

Day after IAEA censures Tehran for blocking access to two sites and EU diplomats say they'll back extending arms embargo, rial plummets to 190,000 for each dollar

Iranian foreign minister levels accusation against UK, France and Germany after they back a UN arms embargo extension against Tehran

After US leader hails successful prisoner swap as sign diplomacy can work, Zarif says it's up to the president to fix the broken international accord