Diplomats said Iran is on course to breach a threshold in its nuclear agreement within days but U.S. President Donald Trump, who has ratcheted up pressure on the Middle Eastern country, said there was "absolutely no time pressure" on the issue.
The prospect that Tehran could soon violate its nuclear commitments, a week after Trump called off air strikes on Iran at the last minute, has created additional diplomatic urgency to find a way out of the crisis.
Iran had set Thursday as a deadline beyond which it would exceed the threshold for stockpiles of enriched uranium allowed under its 2015 nuclear deal with major powers, which Tehran is still following even though Washington abandoned it last year.
The diplomats, citing U.N. inspectors' data, said the Islamic Republic was on course to exceed the limits soon by accumulating more enriched uranium than permitted but it had not done so by Thursday.
However, Trump said of Iran on Friday: "We have a lot of time. There's no rush."
"They can take their time. There's absolutely no time pressure. I think in the end, hopefully, it's going to work out. If it does, great - and if it doesn't, you’ll be hearing about it," he said as he greeted Indian Prime Minister Narendra Modi on the sidelines of a G20 summit in Osaka.
Other world leaders gathered in Japan continued to express concern about Iran, even as Trump appeared relaxed.