US has 'significant issues' with Iran N-deal, says Rex Tillerson

Iran inked the nuclear agreement deal with the US, China, Russia, France, Germany and the

UK and is required to severely curb its nuclear activities in return for global sanctions relief.

At a speech to the United Nations General Assembly this week, US President Donald Trump described the deal as an "embarrassment". He later told reporters that he had decided what to do about the agreement but would not reveal what he had decided.

The Trump administration has until October 15 to decide whether to certify that Iran is complying with the deal. If it fails to do so, Congress could re-introduce sanctions dropped when the accord was implemented.

Tillerson, who met Iranian Foreign Minister Mohammad Javad Zarif here

on sidelines of the UNGA meet, said, "We clearly have significant issues with the agreement."

"The President has been quite clear and articulate as to his concerns about the agreement itself, the thoroughness of the agreement, the enforcement of the agreement,"

he told reporters. Tillerson said while Iran has been in "technical compliance" with the nuclear deal, the aspirations of the agreement have not been met.

Meanwhile, Iran's supreme leader Ayatollah Ali Khamenei on Thursday said US President Donald Trump's "cheap, ugly, foolish and unreal" remarks before the UN General Assembly earlier this week were a "sign of desperation".

In a meeting with a clerical assembly on today, Khamenei, who has the final say on all major policies in Iran, said such comments "do not come from power, but from anger, desperation and

weak-mindedness".