Iranian foreign minister Mohammad Javad Zarif defended the nuclear deal in parliament.  Photograph: Carlos Barria/Reuters

The Iranian parliament will wait at least 80 days before voting on a nuclear agreement reached last week with world powers, as legislators decided on (...)

US secretary of state John Kerry (C) is pictured during an Iran nuclear talks meeting with the Iranian foreign minister in Vienna on Friday. Photograph: Carlos Barria/AFP/Getty Images

The UN nuclear watchdog could issue a report on its investigation into past Iranian research suspected of being linked to nuclear weapons development(...)

President Hassan Rouhani has pledged that Iran will abide by its commitments in the nuclear agreement reached in Switzerland yesterday.He said Iranian(...)

US under secretary for political affairs Wendy Sherman , secretary of state John Kerry, secretary of energy Ernest Moniz, National Security Council point person on the Middle East Robert Malley, EU political director Helga Schmid, head of the Iranian Atomic Energy Organisation Ali Akbar Salehi, Iran’s foreign minister Mohammad Javad Zarif  at a meeting yesterday.

, Iran’s president Hassan Rouhani spoke with the leaders of France, Britain, China and Russia yesterday in an apparent effort to break an impasse h(...)

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(...)

US secretary of state John Kerry with  his Iranian counterpart, Mohammad Javad Zarif,  during a new round of nuclear negotiations in Montreux, Switzerland,  yesterday. Photograph: Evan Vucci/Reuters

They have spent long hours alone together. They exchange private emails. Their walk along the Rhone river in Geneva in January so unnerved hardline la(...)

European Union foreign policy chief Catherine Ashton (left) laughs with Iranian foreign minister Mohammad Javad Zarif at the start of two days of closed-door nuclear talks at the United Nations offices in Geneva today. Photograph: Fabrice Coffrini/Pool/Reuters

Iran said it presented “logical” proposals in talks with six world powers in Geneva today aimed at achieving a breakthrough in a decade-old standoff (...)

US secretary of state John Kerry (left) gestures as Russian foreign minister Sergei Lavrov tries to fix his translation equipment during a joint news conference after their meeting in Moscow yesterday. Russia and the United States have agreed to try to arrange an international conference this month on ending the civil war in Syria, and said both sides in the conflict should take part. Photograph: Mladen Antonov/Reuters

Russia and the United States agreed to bury their differences over Syria and to try to convene international talks with both sides in the civil(...)