Hamas’s political chief Ismail Haniyeh has been assassinated in Iran’s capital, Tehran, according to a statement from the group that governs Gaza.

Haniyeh and one of his bodyguards were killed after the building where they were staying was struck, the statement said, adding that Haniyeh was in Tehran to attend the inauguration ceremony of Iran’s President Masoud Pezeshkian, on Tuesday.

“The Islamic Resistance Movement Hamas mourns to our great Palestinian people, to the Arab and Islamic nation, and to all the free people of the world: Brother, leader, martyr, Mujahid Ismail Haniyeh, the head of the movement, who was killed in a treacherous Zionist raid on his residence in Tehran,” Hamas said.

Iran’s Islamic Revolutionary Guard Corps (IRGC) also announced Haniyeh’s killing.

“With condolences to the heroic nation of Palestine and the Islamic nation and the combatants of the Resistance Front and the noble nation of Iran, this morning (Wednesday) the residence of Mr. Dr. Ismail Haniyeh, the head of the political office of the Islamic Resistance of Hamas, was hit in Tehran, and following this incident, he and one of his bodyguards were martyred,” the IRGC statement reads.