On 2 May 2011 Osama Bin Laden, who had led the Islamist al-Qaeda organization responsible for violent attacks on the United States on 11 September 2001, was killed in Pakistan by US forces. On 7 May hundreds of UK Muslims and MAC members held a rally and Salat al-Janazah (funeral prayer) for him outside the US embassy in London. When protesters tried to storm the embassy there were clashes with police. Anjem Choudary, who organised the protest, warned of an attack similar to the 7 July 2005 London bombings in response to Bin Laden's death.