One U.S. service member and an American civilian were killed Wednesday in an attack in Kabul, Afghanistan, officials said.
Another U.S. service member and two civilians were wounded; they were in stable condition.
The two individuals were killed during an attack near a coalition base by an unknown assailant, officials said. The assailant was later killed.
A U.S. official speaking on background later said the incident occurred at an Afghan military ammunition supply point near Camp Morehead outside Kabul. The Americans were visiting the site as part of their train, advise and assist mission when "a lone assailant opened fire on them at the entry control point," the official said.
The assailant was reported to be wearing an Afghan army uniform, according to a report by Reuters. The shooting took place about 11 a.m. local time, Reuters reported.
The troops and civilians were "conducting duties as part of the larger NATO mission to train, advise and assist the Afghan security services," the U.S.-led coalition in Afghanistan said in a statement.
An investigation into the attack is underway.
"Any time we lose a member of our team, it is deeply painful," Gen. John Nicholson, commander of U.S. Forces-Afghanistan and Resolute Support, said in a statement. "Our sympathies go out to the families, loved ones and the units of those involved in this incident."
Michelle Tan is the editor of Army Times and Air Force Times. She has covered the military for Military Times since 2005, and has embedded with U.S. troops in Iraq, Afghanistan, Kuwait, Haiti, Gabon and the Horn of Africa.
