Iran’s new Supreme Leader Ayatollah Mojtaba Khamenei has vowed to seek revenge for the killing of his father and predecessor, Ayatollah Ali Khamenei, in a move that could deepen tensions across the Middle East.

In his first public message since taking the leadership position, Mojtaba Khamenei said retaliation for his father’s death was a national demand and pledged to avenge those killed in recent conflicts. The statement was broadcast on Iranian state television.

Ayatollah Ali Khamenei, who led Iran for 37 years, was killed in a US-Israeli airstrike on 28 February during a wider conflict involving Iran and its regional rivals. His son was appointed supreme leader on 8 March, according to reports.

Mojtaba Khamenei’s remarks did not identify specific targets but referred to “criminal” forces responsible for the deaths.

Analysts say the comments reflect continued uncertainty over Iran’s direction following the transition of power and the impact of the conflict on regional security.

The statement comes amid heightened tensions between Iran and the United States, with disagreements continuing over security arrangements, sanctions and the future of the Strait of Hormuz, a key global shipping route for energy supplies.

Iran’s leadership has repeatedly framed the deaths of senior officials and military figures as acts requiring a response, while foreign governments have warned that further escalation could threaten stability across the region.

The international community is now closely watching whether Tehran’s statements lead to further military action or renewed diplomatic efforts to reduce tensions.