KABUL, Afghanistan — The State Department said on Tuesday that United States citizens were among the victims of the Taliban attack on a hotel in Kabul, Afghanistan, over the weekend, which killed 22 people.

American officials said they were not yet able to publicly identify the citizens who were killed or injured, but Afghan officials said it appeared that at least three people with American citizenship — all of them either dual citizens or with family roots in Afghanistan — had lost their lives.

The Afghan Foreign Ministry identified one of the dead as Abdullah Waheed Poyan, an Afghan diplomat. Relatives said he had lived in the United States for at least a decade and held a United States passport.

“The attack on the hotel, once again, shows the depravity of terrorists who seek to sow chaos,” said Heather Nauert, the spokeswoman for the State Department. “Sadly, we can confirm that Americans are among the victims.”