Iran will not return to negotiations with the United States as long as Washington makes "unreasonable demands," Iranian Foreign Minister Abbas Araghchi said on Wednesday, according to IRGC media site Tasnim News Agency.

Tehran and Washington engaged in five rounds of indirect nuclear negotiations that ended with the 12-day war in June, in which Israel and the US bombed Iranian nuclear sites.

"Talks that were ongoing with the US, as well as New York negotiations, were suspended and did not go forward because of US excessive demands," Araghchi said, according to Tasnim News Agency, referring to the five rounds of talks and the UN General Assembly (UNGA).

This is a developing story.