"The unmanned airstrike occurred in the Nangarhar Province of Afghanistan," said Capt. Bill Urban, spokesman for U.S. Central Command, in a statement. U.S. military forces conducted a drone strike on Friday against the Islamic State terrorist group in Afghanistan in an apparent retaliatory attack against those who claimed responsibility for the attack outside Kabul's airport. "U.S. military forces conducted an over-the-horizon counterterrorism operation today against an ISIS-K planner," said Capt. Bill Urban, spokesman for U.S. Central Command, in a statement. "The unmanned airstrike occurred in the Nangarhar Province of Afghanistan. Initial indications are that we killed the target. We know of no civilian casualties."

ISIS-K, known as Islamic State Khorasan, claimed responsibility for the "martyrdom attack" on Thursday that involved a suicide bomber who detonated an explosive belt at the airport's gate, killing 13 U.S. service members and more than 110 Afghans. More than 100 were wounded in the blasts. The U.S military is not aware of any civilian casualties in the strike, the officials said. President Joe Biden had vowed in a Thursday speech that the U.S. would respond to the attacks "with force."

"To those who carried out this attack, as well as anyone who wishes America harm, know this: We will not forgive. We will not forget. We will hunt you down and make you pay," Biden said of the Kabul airport attack hours earlier that killed 13 U.S. service members and more than 100 Afghan civilians. Two U.S. defense officials familiar with the strike told that the target of the drone strike was an ISIS-K fighter thought to be involved in planning for future attacks. The strike was in Nangarhar Province in eastern Afghanistan, where ISIS-K had a large presence several years ago before being largely ousted by the Afghan military and the Taliban.

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