The head of the U.N. nuclear watchdog visited two Iranian nuclear sites on Friday as part of a visit to Iran, ahead of an expected European diplomatic push over Tehran's atomic activities before Donald Trump's return to the White House.

The UN nuclear chief toured two Iranian uranium enrichment plants that have been the focus of Western concern on Friday after Tehran said it was ready to address "doubts" about its ambitions.

Iranian President Masoud Pezeshkian told the visiting head of the UN nuclear watchdog on Thursday that his government was willing to resolve doubts about its atomic programme, ahead of US President-elect Donald Trump's arrival in office.

Iran is adopting a friendlier tone with European leaders regarding the future of its nuclear program as the threat of “maximum pressure” from a second Trump administration looms on the horizon. International Atomic Energy Agency Director Gen.

Donald Trump’s looming return to the White House has raised alarmist speculation about Iran’s nuclear program. Is it warranted?

The Iranian mission to the United Nations declined to comment on a New York Times report that Trump ally Elon Musk met with Iran’s ambassador to the U.N.