US President Donald Trump is set to chair a United Nations Security Council meeting on Iran on September 26 on the margins of the 73rd General Assembly, which is set to kick off on September 18 in New York. "He is calling the meeting to address Iran’s violations of international law," said US UN Ambassador Nikki Haley at a press conference Tuesday. She added that the meeting will also address the “instability” Iran is sowing throughout the Middle East region. As her country is set to chair the Security Council in September, Haley on Tuesday held talks with member-states to discuss the council’s agenda. “There is a growing concern about Iran. Some are old things, some are new things,” she remarked. Asharq Al-Awsat learned that she informed her counterparts that the “meeting is planned to be open and public” and pledged to offer further details on the nearest occasion. A high-ranking diplomat at the Security Council told Asharq Al-Awsat that the US ambassador did not mention that Trump would chair any other meeting. The diplomat said Iranian President Hassan Rouhani could attend the talks because it is focused on his country. Another diplomat said: “It would be interesting if Rouhani attends a UN meeting chaired by Trump.” Furthermore, he revealed that Haley had informed her counterparts that Washington is not seeking to issue any UN resolution or statement on Iran. The September meeting comes after the Trump administration withdrew in May from the Iran nuclear deal and re-imposed sanctions on Tehran. Iran’s foreign minister said in August that US and Iranian officials would not meet at the UN General Assembly.