World powers and Iran have reached a deal in Vienna to limit Tehran's nuclear programme in exchange for sanctions relief.
Tehran says it is an 'historic' deal, and the European Union describes it as a 'sign of hope for the entire world'.
Iran has been discussing its nuclear programme with six world powers - the US, UK, China, Russia, and France, plus Germany - on and off since 2006.
The so-called P5+1 group of powers have been trying to stop Tehran from acquiring a nuclear weapon - although Iran has always insisted its nuclear activities are peaceful.
The deal to remove sanctions will now have to be approved by US Congress.
The EU's foreign affairs chief Federica Mogherini says there is still work to do.
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The EU's foreign affairs chief Federica Mogherini says it's good news for the Middle East and the rest of the world.
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OUT: ...relationship."
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