The Imam Ali mosque bombing was the detonation of two car bombs outside the Shia Imam Ali Mosque in Najaf on 29 August 2003. The attack killed 95 people crowded around the mosque for Friday prayers, including Ayatollah Mohammed Baqir al-Hakim, spiritual leader of the Supreme Council of the Islamic Revolution in Iraq. The attack was devastating for the Shia community in Iraq, because such a revered cleric was killed as well as over 90 other people. The bombing was the deadliest attack in Iraq in 2003. Saddam himself released a taped audio message in which he denied having any involvement.