Afghanistan, May 10 -- The fourth round of nuclear talks between Iran and the U.S. will take place in Oman, focusing on key issues.

According to international media reports, representatives of the Islamic Republic of Iran and the United States are scheduled to begin a new round of nuclear negotiations tomorrow, Sunday, May 10, in Muscat, the capital of Oman.

Agence France-Presse (AFP), citing informed sources, reported that the discussions will take place in both direct and indirect formats, facilitated by Omani mediation, similar to previous rounds of talks.

Oman's Foreign Minister, Badr al-Busaidi-who is playing the role of mediator-confirmed that the meeting will be held in Muscat following coordination with both parties. Oman has a l...