Hours after the blast, US President Joe Biden vowed to punish the perpetrators of the attack. He added that the US will continue its evacuation operations.

“We will not forgive. We will not forget,” Biden said, addressing the perpetrators of the attack. “We will hunt you down and make you pay.”

The strike on Thursday was authorised by Biden and ordered by Defense Secretary Lloyd Austin, AP quoted an unidentified defence official as saying.

The airstrike was carried out to target an Islamic State militant who had been planning attacks, Reuters quoted an official as saying.

The drone, which took off from West Asia, reportedly hit the militant, who was in a car along with an associate from the Islamic State. The official said that both of them have been killed.

Pentagon spokesperson John Kirby had said on Friday that the agency believes that ISIS-K is planning to target the airport again, AFP reported. “We still believe there are credible threats… specific, credible threats,” he said.