Nine US trainers were killed on Wednesday morning when an Afghan military pilot opened fire after a dispute inside a military compound at North Kabul International Airport, said USA Today.
Four Afghan soldiers and an interpreter died during the attack, in a report by the AP.
The Taliban claimed responsibility for the shootout that started at 10:30 after the attacker had an argument with a foreign colleague.
The 50-year-old gunman was a military pilot for 20 years who was identified as Ahmad Gul also died. He "opened fire on foreigners after an argument" according to Defense Ministry spokesman Gen. Mohammad Zahir Azimi.
The Taliban claimed they had killed nine NATO members and five Afghan troops during the attack.
Details of this report here.