The United States killed al Qaeda leader Ayman al-Zawahiri in a drone strike, according to multiple sources familiar with the matter. Zawahiri, who just turned 71 years old, had remained a visible international symbol of the group, 11 years after the US killed Osama bin Laden. At one point, he acted as bin Laden's personal physician.

No American personnel were on the ground in Kabul at the time of the strike.

Senior Haqqani Taliban figures were aware of Zawahiri's presence in the area, the official said Monday, in "clear violation of the Doha agreement," and even took steps to conceal his presence after Saturday's successful strike, restricting access to the safe house and rapidly relocating members of his family, including his daughter and her children, who were intentionally not targeted during the strike and remained unharmed. The US did not alert Taliban officials ahead of Saturday's strike.

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