President Donald Trump speaks to reporters in the Oval Office of the White House. AFP
"We do not detail private diplomatic conversations," deputy press secretary Anna Kelly said in a statement sent to AFP.
"President (Donald) Trump has been clear that Iran can never possess a nuclear weapon, and negotiations continue to ensure the short- and long-term national security of the United States."
Iran delivered the new proposal Thursday evening for talks with the United States via mediator Pakistan, the state news agency IRNA reported earlier, giving no details.
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