WASHINGTON/ RIYADH    -   President Joe Biden said Mon­day that the United States killed Al-Qae­da chief Ayman al-Zawahiri sus­pected master­mind of the Sep­tember 11, 2001 attacks.

In a televised address, Biden said the strike in Kabul, Afghanistan had been carried out on Saturday. “I gave the final approval to go get him,” he said, adding that there had been no civilian casualties.

“Justice has been delivered and this terrorist leader is no more,” Biden said. A senior administration official said Zawahiri had been killed on the balcony of a house in Kabul in a drone strike, and that there had been no US boots on the ground in Afghanistan.

The official said that Zawahiri’s presence in the Af­ghan capital Kabul was a “clear violation” of a deal the Taliban had signed with the US in Doha in 2020 that paved the way for the US withdrawal from Afghanistan.

It was the first known over-the-horizon strike by the United States on an Al-Qaeda target in Afghanistan since American forces withdrew from the country on August 31, 2021. Zawahiri, an Egyptian surgeon who grew up in a comfortable Cairo household, had been on the run for 20 years since the 9/11 attacks that killed nearly 3,000 people in the United States.

He took over Al-Qaeda after Osama bin Laden was killed by US special forces in 2011, and had a $25 mil­lion US bounty on his head.

Over the weekend the Afghan interior ministry de­nied reports circulating on social media of a drone strike in Kabul, telling AFP a rocket struck “an empty house” in the capital, causing no casualties. Early Tues­day in Kabul, however, Taliban spokesman Zabihullah Mujahid tweeted that an “aerial attack” was carried out on a residence in the Sherpur area of the city.

“The nature of the incident was not revealed at first. The security and intelligence agencies of the Islam­ic Emirate investigated the incident and found in their preliminary investigations that the attack was carried out by American drones,” his tweet said.

Zawahiri’s father was a renowned physician and his grandfather a prayer leader at Cairo’s Al-Azhar insti­tute, the highest authority for Muslims. He became in­volved with Egypt’s Muslim community at a young age and published several books on Islam. ‘One of the lead­ers of terrorism’ Saudi Arabia welcomed the US an­nouncement that Al-Qaeda head Ayman al-Zawahiri had been killed, the foreign ministry said Tuesday.

“The Kingdom of Saudi Arabia welcomed the an­nouncement by US President Joe Biden of the targeting and killing of the terrorist leader of Al-Qaeda Ayman Al-Zawahiri,” it said.