The incident took place in Kapisa city and unconfirmed reports suggest that the armed men are Afghan national army and police officers.
The assailant armed men are also equipped with Humvee armoured vehicles and modern military equipment and at least one US soldier has reportedly been killed following the clashes.
In the meantime a local government official speaking on the condition of anonymity said the incident took place while Afghan soldiers were leaving the military base and a verbal conflict started between US and Afghan soldiers.
The source further added at least one US soldier and one Afghan soldier were killed during the clashes and no one else was injured.
NATO-led International Security Assistance Force (ISAF) following a statement also confirmed the report and said, “Individuals wearing Afghan National Army uniforms turned their weapons against International Security Assistance Force members in eastern Afghanistan today, killing one ISAF-contracted civilian.”
ISAF further added, “The incident is currently under investigation.”