Iranian Foreign Minister Mohammad Javad Zarif held talks with his Omani counterpart Yusuf bin Alawi in New York.
Iranian President Hassan Rouhani will leave Tehran for New York on Monday to attend the annual gathering of world leaders at the United Nations next week.
Japanese Prime Minister Shinzo Abe said on Tuesday he would meet with Iranian President Hassan Rouhani at the end of the month in New York.
Iran has once again rejected any possibility of a meeting between presidents Rouhani and Trump in New York as world leaders prepare to take part at the upcoming UN General Assembly (UNGA) meeting.
According to a report by Japanese media, Prime Minister Shinzo Abe and President Hassan Rouhani are planning to meet in late September in New York.