Three U.S. soldiers were killed and another was wounded Saturday when an Afghan army soldier opened fire on them in eastern Afghanistan, U.S. officials told NBC News.
The shooter β identified as a member of the Afghan National Army's Commando Forces β was killed in return fire, officials told NBC.
Such insider attacks have happened before in Afghanistan. In March, another Afghan soldier was killed after he opened fire on foreign forces at a base in Helmand province, wounding three U.S. soldiers.
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