Iran rules out direct US talks

President Hassan Rouhani on Tuesday ruled out holding any bilateral talks with the United States and threatened to further cut Iran's commitments to a nuclear deal within days.

In an address to parliament, Rouhani said any dialogue with the US would have to fall within the framework of the group of major powers that agreed a landmark nuclear deal with Tehran in 2015.

Rouhani also said Iran was ready to further reduce its commitments to the accord "in the coming days" if current negotiations with European nations yield no results by Thursday.

Tehran and Washington have been at loggerheads since May last year when US President Donald Trump unilaterally withdrew from the nuclear deal and began reimposing crippling sanctions.

The arch-foes were on the cusp of confrontation in June when Iran downed a US drone and Trump ordered retaliatory strikes before cancelling them at the last minute.

France has been leading efforts to calm the situation, with President Emmanuel Macron expressing hope during G7 talks in late August of organising a meeting between Rouhani and Trump.

"Maybe there has been a misunderstanding. We've said it several times and we repeat it -- there has been no decision to hold bilateral talks with the US," said Rouhani.

"In principle, we don't want bilateral talks with the United States," he was quoted as saying on the official government website.

"If the United States lifts all sanctions, it would be possible to talk (to them) during 5+1 meetings as in the past," he said, referring to the powers involved in negotiating the 2015 deal.

"We have received several proposals (to have talks with the United States) and our answer has always been negative."