U.N. nuclear watchdog chief Rafael Grossi said on Wednesday he might head to Iran in the coming days to discuss its disputed atomic programme and that he expected to work cooperatively with U.S. President-elect Donald Trump, Paralel.Az reports citing Reuters.

"We are already talking to colleagues in Iran for my next visit maybe in a few days. We still have to confirm the time but this will be done," he told a news conference in Rome after a nuclear energy event.

Without confirming it, Iranian officials have welcomed a visit from Grossi, saying Tehran is ready to cooperate with the IAEA to resolve outstanding issues, without giving details.