A state department official said on Tuesday multiple American citizens were killed and injured in the weekend attack on a Kabul hotel for which the Taliban claimed responsibility.
The official did not give exact figures for either US fatalities or injuries. The official was not authorized to comment by name and demanded anonymity.
The state department said the US was sending “deepest condolences” to the families and friends of those killed and wishing the injured a speedy recovery.
The Americans were among 22 people killed in the attack. An Afghan interior ministry official has said 14 were foreigners and eight were Afghans. More than 150 people were rescued or escaped.
The 14-hour siege started on Saturday when Taliban militants in suicide vests stormed the hotel. It ended on Sunday.
Taliban spokesman Zabiullah Mujahid claimed five gunmen belonging to the group were responsible for the attack. The Afghan interior ministry blamed the Taliban-affiliated Haqqani network, which killed 21 people at the same hotel in 2011.