US President Donald Trump said talks with Iran had gained momentum and could produce an agreement, while warning that the United States might launch additional military action against Iranian nuclear facilities if necessary. Trump spoke during a multilateral meeting with Gulf Cooperation Council countries, including Türkiye, on the sidelines of the UN General Assembly in New York. He said US envoys Steve Witkoff and Jared Kushner had held a productive meeting with mediators working to engage Iran. Trump said the US war objective had largely focused on preventing Iran from obtaining a nuclear weapon and claimed Iranian nuclear sites had been destroyed. He singled out the Iranian facility known as Pickaxe Mountain, saying the US would strike it immediately if significant activity were detected. Trump also said oil flows through the Strait of Hormuz (key global oil shipping route) had increased significantly since the war began. He said the conflict could end after the US midterm elections in November, or potentially earlier, either through a deal or a rapid end to the fighting. Trump also recalled a meeting one year earlier involving many of the same leaders to discuss ending the war in the Gaza Strip, and praised Turkish President Recep Tayyip Erdogan. After the meeting, Erdogan said eight countries had come together and that they were working to overcome difficulties in the Gulf and see results as soon as possible.