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In this photo released by the official website of the office of the Iranian Presidency, Qatari Emir Sheikh Tamim bin Hamad Al Thani is seen with President Ebrahim Raisi during an official arrival ceremony at the Saadabad Palace in Tehran on Thursday. Image Credit: AP

Tehran: Qatar’s ruler met Iranian President Ebrahim Raisi in Tehran Thursday, state television reported, as talks falter on bringing Washington back into a 2015 nuclear deal between Tehran and major powers.

The one-day visit by the emir, Sheikh Tamim bin Hamad Al Thani, came as the European Union’s coordinator for the nuclear talks, Enrique Mora, held a second day of meetings in Tehran with Iran’s chief negotiator Ali Bagheri.

Qatar, a close US ally, has added the Iran nuclear dispute to the list of diplomatic hotspots where it has sought to play a behind-the-scenes mediating role, and the emir has called for more dialogue to settle the standoff.

Washington unilaterally abandoned the nuclear deal under then-president Donald Trump in 2018 and reimposed sweeping economic sanctions, prompting Iran to begin rolling back its own commitments.

President Joe Biden has said he wants the United States to return to the agreement but on-off talks on the mechanics have been stalled since March.

Qatar has maintained close relations with Iran and the two countries share the world’s largest natural gas.

Iran’s state news agency IRNA said “unfreezing Iran’s assets, cooperation in holding the 2022 World Cup, pursuing prisoner exchanges and cooperation in the field of energy” were also on the agenda of the emir’s visit.

Iran has expressed interest in hosting spectators for the World Cup finals in Qatar in November on its nearby resort island of Kish.

It is waiving visa fees for visitors in the hope of attracting fans to the island.