They later offered a $10m (£8m) reward to anyone with information leading to the arrest or conviction in any country of those responsible for the attack, or for the capture of ISIS-K leader Sanaullah Ghafari.
The Islamic State group mastermind believed to have plotted the devastating August 26, 2021 bombing at Kabul airport has been killed by Afghanistan’s ruling Taliban, the United States officials have revealed.
The bombing that August killed 170 civilians and 13 US soldiers as people were trying to flee the country as the Taliban took control.
According to BBC, the IS figure was killed weeks ago but it took time to confirm his death, but his name has not been released.
US officials said they had determined through intelligence gathering and monitoring of the region that the leader had died, though they did not disclose further details on how they had learned that he was responsible for the bombing.
“Experts in the government are at high confidence that this individual… was indeed the key individual responsible,” a senior US said.
According to a report in the New York Times, the US learned of the leader’s death in early April.
However, it is yet unclear whether he was targeted by the Taliban or if he was killed during ongoing fighting between IS and the Taliban.
On Monday, the US began notifying families of the soldiers killed about the death of the IS leader.
Darin Hoover, father of Marine Staff Sergeant Taylor Hoover who died in the blast, confirmed to CBS that he had been notified of the news by the Marine Corps.
“They could not tell me any details of the operation, but they did state that their sources are highly trusted, and they’ve got it from several different sources that this individual was indeed killed,” Mr Hoover said in an interview on Tuesday.
The blast came hours after Western governments warned their citizens to stay away from Kabul International Airport, because of an imminent threat of an attack by IS-K, the Afghanistan branch of the Islamic State group.
It happened around 18:00 local time on 26 August 2021 at the Abbey Gate to the airport, when a suicide bomber walked into the middle of families waiting outside the gate.
Huge crowds had been gathering in the locale, hoping to be accepted on to an evacuation flight as US troops pulled out of Afghanistan.
Among the casualties were two British nationals and the child of a British national, the UK government said at the time.
The US carried out a drone strike in Kabul days later, saying it had targeted a suicide bomber, only to admit that the missile had killed 10 civilians, including seven children.
They later offered a $10m (£8m) reward to anyone with information leading to the arrest or conviction in any country of those responsible for the attack, or for the capture of ISIS-K leader Sanaullah Ghafari.
The August 2021 pull-out of US troops from Afghanistan marked the end of America’s longest war.