The Pentagon has offered unspecified condolence payments to the family of 10 civilians who were killed in a botched U.S. drone attack in Afghanistan in August in the final days before American troops withdrew from the country.

The U.S. Defense Department said it made a commitment that included offering ex-gratia condolence payments, in addition to working with the U.S. State Department in support of the family members who were interested in relocation to the United States.

The U.S. military said in September that a drone strike in Kabul the previous month killed as many 10 civilians, including seven children, and it apologized for what the Pentagon said was a tragic mistake.

Senior U.S. officers had said the Aug. 29 strike that took place as foreign forces completed the last stages of their withdrawal from Afghanistan targeted an Islamic States suicide bomber who posed an imminent threat to Kabul airport.

"At the time of the strike, I was confident that the strike had averted an imminent threat to our forces at the airport," U.S. General Frank McKenzie, the head of U.S. Central Command, told reporters. "Our investigation now concludes that the strike was a tragic mistake."