TEHRAN, April 12 (Xinhua) -- Iranian Foreign Minister Seyed Abbas Araghchi on Saturday met with his Omani counterpart Sayyid Badr bin Hamad bin Hamood Albusaidi in the Omani capital of Muscat ahead of "indirect" Iran-U.S. talks, the Iranian Foreign Ministry said in a statement.

The meeting took place shortly after Araghchi's arrival and before his scheduled "indirect" negotiations with U.S. Special Envoy to the Middle East Steve Witkoff over Iran's nuclear program and sanctions relief, the ministry said.

Araghchi hailed the "robust and longstanding" Iran-Oman relations in all areas and thanked Oman for its "responsible" approach towards the issues and developments in the West Asia region, with hosting the "indirect" Iran-U.S. talks as proof, the ministry said.

Araghchi also briefed Albusaidi on Iran's positions so that he would convey them to the U.S. side, the ministry said.

Describing Iran-Oman ties as "excellent," Albusaidi thanked Iran for choosing Muscat as the site for the "important" talks and informed Araghchi of the arrangements and preparations made for the talks, read the statement.

U.S. President Donald Trump said Monday during a meeting with Israeli Prime Minister Benjamin Netanyahu in Washington that "direct talks" with Iran were expected.

On Tuesday, Araghchi confirmed that he would meet with Witkoff in Oman on Saturday for "indirect high-level talks."

The discrepancy over whether the talks are direct or indirect has persisted since early March, when Trump stated he had sent a letter to Iranian leaders -- via the United Arab Emirates -- proposing direct negotiations on Iran's nuclear program.

While Iran later confirmed receiving the letter and left the door open for indirect engagement, it has rejected face-to-face negotiations while under what it calls Trump's "maximum pressure" campaign, as Trump has repeatedly warned of severe consequences if Iran does not abandon its nuclear program.

On Wednesday, Trump warned that military action remains on the table if Iran fails to agree to end its nuclear program. Meanwhile, the U.S. Treasury Department announced new sanctions targeting five entities, including the Atomic Energy Organization of Iran and one individual in connection with Iran's nuclear activities.

Iran signed a nuclear deal, formally known as the Joint Comprehensive Plan of Action, with six major countries -- Britain, China, France, Germany, Russia, and the United States -- in July 2015, accepting restrictions on its nuclear program in return for sanctions relief.

However, the United States withdrew from the deal in May 2018 and reinstated sanctions, prompting Iran to scale back some of its nuclear commitments. Efforts to revive the nuclear deal have not achieved substantial progress.