UK foreign secretary says he wrote to head of international body, along with Romania and Liberia, over Tehran's 'lack of respect for international law' with deadly attack on ship

Tehran dismisses UK, US comments linking it to drone strike; Britain summons Iranian ambassador over incident

Blinken: 'We are confident that Iran conducted this attack'; Britain's FM Dominic Raab condemns 'unlawful and callous attack' that killed a Briton and a Romanian

Amnesty International calls for immediate release of labor activist Mehran Raoof, who was reportedly arrested while helping to translate English-language news articles into Persian

Iranian FM Zarif claims that 'unlike the UK and allies, Iran believes nukes and all WMDs are barbaric & must be eradicated’

Nazanin Zaghari-Ratcliffe faces new charges of spreading 'propaganda against Iran' following completion of prison sentence on widely refuted spying indictment

In phone call, British PM presses case of Nazanin Zaghari-Ratcliffe; also calls on Tehran to reverse breaches of nuclear deal

Nazanin Zaghari-Ratcliffe, 42, still faces a new trial for 'spreading propaganda' and other charges, and cannot return home to the UK

Proposed resolution could derail temporary agreement that International Atomic Energy Agency reached with Tehran to mitigate loss of some inspections

European signatories to 2015 nuclear deal 'united in underlining the dangerous nature of this decision' to restrict access to watchdog IAEA's monitoring regime