LOUISVILLE, Ky. (WHAS11) -- Another instance of an Afghan soldier turning on his American trainers on Saturday.
The International Military Coalition in Afghanistan says a man in an Afghan Army uniform shot and killed three Americans.
This so-called "insider attack" happened near the Afghan border with Pakistan.
ABC's Muhammad Lila was on patrol nearby and explains the chaos that erupted in the moments that followed the attack.
So far this year, there have been five insider attacks on foreign forces.
Eight troops and one U.S. contractor died because of them.
Last year, there were 29 insider attacks that killed 62 international troops.