The funeral procession for Ayatollah Ali Khamenei drew large crowds through the streets of Tehran on Sunday, marking the end of a nearly four-decade reign over the Islamic Republic. Despite the scale of the public mourning, Iran's newly designated supreme leader — Khamenei's son — did not appear at the ceremony, remaining out of public view as the transition of power unfolds.

Khamenei's other sons were seen at the funeral, according to reporting from PBS NewsHour, but the absence of the new supreme leader drew significant attention internationally. The reasons for his absence have not been officially explained by Iranian authorities, though analysts have noted that the succession process in Iran carries both political and security sensitivities.

The transition is unfolding against a backdrop of heightened regional pressure. Israel issued an explicit warning that any Iranian leader who pursues the destruction of Israel will be targeted, a statement that underscored the precarious security environment surrounding the new leadership. Meanwhile, the United Arab Emirates opted not to send a delegation to the funeral, a diplomatic signal noted by multiple outlets.

On the diplomatic and military front, negotiations between the United States and Iran over access to the Strait of Hormuz remain active, with American force posture in the region a factor in ongoing talks. The Strait, through which a significant share of global oil passes, has been a recurring pressure point in U.S.-Iran relations.

The new supreme leader's consolidation of power is being watched closely by governments across the Middle East and by Western capitals. How quickly and visibly he asserts authority is expected to shape Iran's posture on nuclear negotiations, regional proxy conflicts, and its relationship with adversaries including the United States and Israel.