US Secretary of State John Kerry has warned that further sanctions against the Iranian government could lead to the failure of ongoing nuclear talks.
Kerry told the BBC that the so-called P5+1, US, UK, France, Russia and China plus Germany, came “extremely close” to finalising a deal with Iran over the weekend.
Speaking to reporters before meeting senators on Wednesday, he said:
"What we're asking everybody to do is calm down, look hard at what can be achieved and what the realities are."
Kerry previously said that the differences between the P5+1 and Iran over its nuclear programme can be overcome.
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