US President Donald Trump has offered to meet Iran's leaders with "no preconditions" and "any time they want".
Trump told reporters "I'd meet with anybody. I believe in meetings,"
Trump's approach comes after he and Iranian President Hassan Rouhani traded hostile warnings earlier this month.
In May, the US left a deal which curbed Iran's nuclear activities in return for the lifting of international sanctions.
Washington is preparing to re‑impose sanctions on Tehran within days ‑ despite objections from the UK, France, China, Russia and Germany, which also signed the 2015 agreement.
The US is deeply suspicious of Iranian activity in the Middle East and is an ally of Israel and Saudi Arabia, two of Iran's foes.
