TEHRAN – Omani Foreign Minister Badr Albusaidi says the Thursday nuclear talks between Iran and the U.S. in Geneva made "significant progress" and technical discussions will take place next week in Vienna.

"We have finished the day after significant progress in the negotiation between the United States and Iran. We will resume soon after consultation in the respective capitals. Discussions on a technical level will take place next week in Vienna. I am grateful to all concerned for their efforts: the negotiators, the IAEA, and our hosts the Swiss government," Badr Albusaidi, who has been mediating the talks between Iran and the U.S., wrote on X.

Raphael Grossi, the chief of the International Atomic Energy Agency, participated in the negotiations on Thursday.

Abbas Araghchi, Iran’s foreign minister and chief negotiator, also said “good progress” was made in the Geneva talks, adding, "We seriously entered the components of a deal."

He also called this round of talks, the third of its kind since early February, the “most serious and longest” one.  

Araghchi also said the technical talks will start on Monday. The foreign minister added Grossi's participation in the talks was helpful in terms of technical issues. 

The chief diplomat said the Iranian and U.S. negotiators had common understandings on certain issues, but differences on some others still remain.

He added, "Consultations should be made in the capitals, and after that we will have the fourth round of talks."

Noting that the negotiating sides showed more seriousness this time, he said the Iranian side unequivocally insisted on Tehran's demands for the lifting of sanctions on the Islamic Republic.

Before the announcements by the Iranian and Omani foreign ministers, former U.S. nuclear negotiator Robert Malley said a nuclear deal with Iran is achievable if the Trump administration is really seeking a deal more stringent than the JCPOA (the 2015 nuclear deal), which was ditched by Donald Trump during his first presidency.

“If the Trump administration’s objective in the negotiations is a nuclear deal that is objectively more constraining than the JCPOA, they can achieve it,” he wrote on social media. However, he warned, “If it’s something entirely different, they won’t.”

Malley was the U.S. chief nuclear negotiator with Iran during President Joe Biden. He also served in the U.S. negotiating team during the Obama presidency, when the JCPOA was signed.