This undated, uncredited photo of Mohammad Atef, appears on the FBI's Most Wanted Terrorists list on their website on November 16, 2001. Mohammed Atef, one of the top leaders of Osama bin Laden’s al Qaeda network, has apparently been killed in a US air strike in Afghanistan, a US official said on Friday. “We believe that it is true that he was killed in the US bombing around Kabul,” said the official, who asked not to be identified. —REUTERS