US president Barack Obama has issued a video message directed at Iran’s young people, urging them to pressure their leaders to accept a nuclear deal. Photograph: Aude Guerruci/EPA.

Two weeks after US Senate Republicans issued a letter to the Iranian leadership warning that any nuclear agreement Iran signs with the administration(...)

Iran’s leader Ayatollah Khamenei reportedly sent Barack Obama a secret letter in response to a suggestion by Mr Obama that a deal could be struck on Iran’s nuclear projects. Photograph: Handout via EPA

Iran’s leader Ayatollah Ali Khamenei has responded to overtures from US president Barack Obama by sending him a secret letter amid nuclear talks, the (...)

Ayatollah Ali Khamenei greeting Iranian air force officers during a ceremony in Tehran on Sunday. Media reports say Mr Khamenei revealed he would back a nuclear agreement currently being negotiated between Iran and world powers. Photograph: EPA

Iran’s supreme leader said yesterday he could accept a compromise in nuclear talks and gave his strongest defence yet of President Hassan Rouhani’s de(...)

Iran’s supreme leader, Ayatollah Ali Khamenei, said the West had failed to bring Iran “to its knees” over its nuclear programme. Photograph: Office of the Iranian supreme leader via the New York Times

Iran’s supreme leader, Ayatollah Ali Khamenei, has said the West has failed to bring Iran “to its knees” over its nuclear programme. Meeting Muslim c(...)

A man reads a copy of the Iranian ‘Hamshahri’ newspaper  with a headline reading: ‘The Geneva deal extended until first of July’. Photograph: Abedin Taherkenareh/EPA

Iranian supreme leader Ayatollah Ali Khamenei lashed out angrily at the western powers for trying to “bring Iran to its knees” following the failure t(...)

US secretary of state John Kerry addresses the media after the nuclear talks session with Iran in Vienna. Photograph: AP Photo/Ronald Zak

The longer the international standoff over Iran’s suspect nuclear programme continues, the more dangerous and volatile the situation becomes. All s(...)

 Iranian foreign minister Mohammad Javad Zarif and  US secretary of state John Kerry at the talks between the E3+3 (France, Germany, Britain, China, Russia, USA) and Iran in Vienna, Austria. Photograph: Roland Schlager/EPA

Iran and six powers failed for a second time this year to resolve a 12-year dispute over Tehran’s nuclear ambitions and gave themselves seven more mo(...)

People fleeing Islamic State fighters in Mosul last June arrive at a checkpoint in Irbil, in northern Iraq. Photograph: Kamal Akrayi/EPA

Iraq’s national security adviser Falah Fayadh was in Washington struggling to arrange delivery of US fighter jets to aid the country’s fight against a(...)

US secretary of state John Kerry shakes hands with Oman’s foreign minister Yussef bin Alawi as EU envoy Catherine Ashton and Iran’s foreign minister Javad Zarif watch before talks on Tehran’s nuclear programme began in Muscat on Sunday.  Photograph: Nicholas Kamm/Reuters

Iran, the United States and the European Union ended two days of high-level talks on Tehran’s nuclear programme today with no immediate sign they had (...)

With the November 24th deadline looming for the expiry of an interim agreement on Iran’s nuclear programme, the prospects for a comprehensive deal rem(...)