Iranian state television announced Pezeshkian’s order, which followed a law passed by Iran’s parliament to suspend that cooperation. The bill already received the approval of Iran’s constitutional watchdog, the Guardian Council, on Thursday, and likely the support of the country’s Supreme National Security Council, which Pezeshkian chairs.

But US President Donald Trump then said he was not speaking to Iran and was not offering Tehran anything. Iran's deputy foreign minister has told the BBC his country won't enter into talks on its nuclear programme.