A UN atomic watchdog team is to visit Tehran next week, state media reported Friday.

A UN atomic watchdog team is to visit Tehran next week, state media reported Friday.

The delegation from the International Atomic Energy Agency (IAEA) will hold talks on the "outstanding issues" in its investigation, Iran's ambassador to the Vienna-based watchdog told the official IRNA news agency.

After years of Tehran insisting that it had already dealt with all of the IAEA's concerns, progress began to be made in February.

Iran provided the watchdog with explanations on one out of 12 outstanding issues, and in May promised information on two more.

On its part, Washington voice disquiet at the pace of progress as the clock ticks down to a November 24 deadline for a comprehensive nuclear deal between Iran and the major powers.

"Concerns about the possible military dimensions of Iran's nuclear programme must be addressed as part of any comprehensive" deal, the US representative at the IAEA, Lara Kennedy, said.