An Australian Army soldier seen shooting an unarmed Afghan man in footage aired by Four Corners has been suspended from duty, with the Defence Minister referring the matter to the Australian Federal Police (AFP) Commissioner.

The Four Corners footage showed an Afghan man named Dad Mohammad being shot and killed at close range by an Australian Special Air Service Regiment (SAS) soldier in the Uruzgan province of Afghanistan.

A Defence investigation of the 2012 incident found the SAS soldier, called Soldier C in reporting, acted in self-defence.

The Department of Defence has issued a statement saying the revelations are "serious and disturbing".

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