Iran’s Foreign Minister Abbas Araghchi has denied any message exchange with the United States on nuclear negotiations via Oman, but said messages were being exchanged 'when necessary' through Switzerland.

“Naturally, if there is a need for such efforts, they will certainly be undertaken, but no messages were exchanged during this visit,” Araghchi said during a joint press conference with his Omani counterpart, Badr bin Hamad Al Busaidi, in Tehran on Monday.

“Oman's role in nuclear negotiations is clear, and we have always expressed our gratitude to our Omani friends in this regard, ”he added.

He also reiterated that Tehran continues to exchange necessary messages with Washington through the Swiss Embassy. “At the appropriate time…and if necessary, it will be done through this channel. If needed, our Omani brothers could also assist, but no such actions took place during this trip,” he said.

Al Busaidi, who traveled to Tehran for high-level talks, did not comment on the matter but said that he carries a message from the Sultan of Oman for the Iranian President Masoud Pezeshkian.

Araghchi also addressed regional issues, emphasizing the need for stability in Syria. "We all seek calm in Syria, the formation of an inclusive government, and an end to the occupation by Israel," he said, referring to what is internationally recognized as the Israeli occupied Golan Heights.

The press conference is part of a string of trips, following meetings in the UAE the day before, and china on Saturday. In Beijing, he held talks with Chinese Foreign Minister Wang Yi, where, according to a statement by the ministry, they agreed to advance the implementation of the China-Iran Comprehensive Cooperation Plan.