One American soldier was killed and seven others wounded in a shootout after an Afghan soldier opened fire on them following a visit from U.S. officials in eastern Afghanistan Wednesday, U.S. officials told NBC News. "We are aware that there was an exchange of gunfire involving Resolute Support service members near the provincial governor's compound in Jalalabad," U.S. Embassy spokeswoman Monica Cummings said, referring to the NATO mission in Afghanistan. U.S. defense officials told NBC News that American troops killed the gunman. A police chief said the shooting happened after a meeting between U.S. and NATO officials and Afghan tribal and community leaders. Ambassador Michael McKinley, who was at the meeting, declined to provide further details.