Iranian Foreign Minister Abbas Araghchi, in a letter to UN Secretary General Antonio Guterres and members of the UN Security Council, noted that the assassination of Iran's Supreme Leader Ali Khamenei represents a direct attack by the US and Israel on the fundamental principles of international law.

The US and the Israeli regime have deliberately chosen to target the highest official of Iran, which is a sovereign member of the UN, namely the Supreme Leader of the Islamic Republic of Iran, Ali Khamenei. This hooligan and monstrous terrorist act is a direct attack on the fundamental principles of international law, the letter states, in part.

Also, Araghchi emphasized that the deliberate elimination of the Iranian leadership is a clear violation of international law and opens a Pandora's box.

The deliberate attack on a high-ranking official of the Islamic Republic of Iran is a gross and flagrant violation of the most basic norms governing relations between states. This behavior recklessly opens a dangerous Pandora's box, undermining the foundation of sovereign equality and the stability of the international system, he stressed.

In addition, Iran calls on the UN Secretary General and the UN Security Council to take concrete steps to hold the US and Israel accountable.

According to Araghchi, the US and Israel are committing crimes against humanity and war crimes.