https://english.alarabiya.net/News/middle-east/2021/08/26/Four-Marines-killed-another-three-injured-in-Afghanistan-bombing-US-envoy-in-Kabul

At least four US marines were killed Thursday as a result of the suicide bombing that took place in Kabul's airport, the US ambassador reportedly said.

The Wall Street Journal said another three US troops were injured, citing a US official with knowledge of the matter.

https://www.independent.co.uk/news/world/americas/us-politics/boris-johnson-kabul-attack-bombing-b1909389.html

UK Prime Minister Boris Johnson confirmed the deaths of multiple US service members as a result of an attack on the Kabul airport in Afghanistan where evacuations from the country are ongoing.

Mr Johnson told reporters on Thursday that he “can confirm that there’s been a barbaric terrorist attack” in Kabul, adding that “members of the US military have, very sadly, lost their lives”.

His statement confirmed news regarding which the Pentagon and White House have remained almost silent all morning; multiple requests for Pentagon officials to confirm that US service members were killed were rebuffed by officials at the Department of Defense even as the foreign ministries of other countries including the UK have been more forthcoming.