A black flag of mourning was raised over the Imam Reza Mosque in Mashhad, the birthplace of the Supreme Leader of the Islamic Republic, symbolizing deep national grief. This event followed the official confirmation of Ayatollah Ali Khamenei's death, which was carried by Iranian state media. The tragic incident occurred as a result of massive Israeli and US airstrikes on the country. In response to this irreparable loss, the Iranian government has declared a forty-day national mourning, and the current week has been officially declared a non-working week for all citizens.

Commenting on the incident, Iranian President Masoud Pezeshkian issued a strongly worded statement, emphasizing that the assassination of the Supreme Leader is an act of aggression that will under no circumstances go unanswered by Tehran. The situation in the region has reached a breaking point, as the death of a key figure in Iran's political and spiritual system threatens stability throughout the Middle East. Raising the black flag in Mashhad is traditionally considered a sign of great sorrow and a call for national unity in the face of an external threat. Spontaneous mourning events are currently taking place across the country, and the Iranian armed forces have been placed on high alert, awaiting further instructions from the country's leadership.