Ayman al-Zawahiri, the leader of the Salafi jihadist group al-Qaeda, was killed by a United States drone strike on 31 July 2022 in Kabul, Afghanistan. He was the successor of Osama bin Laden, who was killed by U.S. forces in Pakistan on 2 May 2011. Al-Zawahiri, who had helped to plan the September 11 attacks against the U.S., had gone into hiding following the attacks, and was located by the Central Intelligence Agency (CIA) months before his death. After receiving authorization from U.S. President Joe Biden to initiate the strike, the CIA fired two Hellfire missiles at the balcony of al-Zawahiri's house, killing him.