Details about exactly how many people were held at Kabul’s Park Palace Hotel remained unclear into the night.

The U.S. Embassy in Afghanistan says one U.S. citizen has been killed in an attack on Kabul guesthouse.

The embassy said in an email statement issued Wednesday that it can confirm reports a U.S. citizen was killed in the attack and it extended condolences to the victim’s family. The name of the victim was not immediately available.

“We can confirm reports that a U.S. citizen was killed in the attack on a guesthouse in Kabul,” embassy spokeswoman Monica Cummings told AFP.

“Our thoughts are with the families of the victims at this time. Out of respect for the families of those killed, we have no further information at this time.”

Gunmen stormed the guesthouse as it hosted a party for foreigners Wednesday night, with an eyewitness saying several dozen people, including Americans, likely were being held captive.

Details about exactly how many people were held at Kabul’s Park Palace Hotel remained unclear into the night, as sporadic gunfire echoed around the guesthouse in a central neighborhood home to United Nations compounds and a foreign-run hospital. Two explosions later could be heard and four ambulances later arrived to the scene.

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