US President Donald Trump declined to confirm whether the United States had struck an Iranian vessel, responding that he did not want to say when questioned by a reporter. The uncertainty comes during heightened U.S.-Iran tensions around the strategic Strait of Hormuz, following exchanges in recent days that have included military actions and diplomatic efforts. The ambiguity could affect perceptions of the risk of further U.S. military escalation, although the source says its tier limits the potential impact on market movements. Observers will watch for confirmation or denial from the U.S. Department of Defense, further comments from Trump or Defense Secretary Pete Hegseth, and new military activity by either side around the strait.