MUSCAT/TEHRAN - Omani Foreign Minister Sayyid Badr bin Hamad bin Hamood Albusaidi said on Wednesday that the fifth round of indirect talks between the United States and Iran will be held in Rome on May 23. The announcement was made in a post on his official X account.

The talks, aimed at reviving stalled diplomacy over Iran's nuclear program and US sanctions, are being facilitated by Oman. Four rounds have taken place since April, three in Muscat and one in Rome.

Iranian Foreign Minister Seyed Abbas Araghchi said on Wednesday that Tehran was still considering whether to participate in the upcoming talks in the face of "excessive demands" from the United States, according to Iran's state news agency IRNA.

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"We will stand against excessive demands at the negotiating table, but we have never abandoned diplomacy," Araghchi said, adding that uranium enrichment would continue "with or without an agreement".

He reiterated that Iran is prepared to offer transparency regarding its nuclear activities, but expects negotiations to also address the lifting of US sanctions and embargoes imposed on the country.

Also on Wednesday, Iranian First Vice-President Mohammad-Reza Aref told a cabinet meeting in the Iranian capital Tehran that uranium enrichment on Iran's soil is the "red line" of Iran's establishment in its indirect talks with the United States.

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US and Iranian officials have described the previous round of talks in Muscat on May 11 as "difficult but useful", noting a generally positive tone despite persistent differences.

US officials have in recent days called for Iran to fully halt uranium enrichment – an issue Tehran has repeatedly declared to be non-negotiable.