29 Aug 2012 23:42

At-least three troops in the NATO-led force in Afghanistan have been killed in an attack by a member of the Afghan security forces, officials said, in the latest insider attack that has caused growing dismay among coalition commanders.

The assault occurred in southern Uruzgan province in the evening hours on Wednesday and the nationality of the troops killed has not been announced, a US defence official, who spoke on condition of anonymity, said.

The casualties were not American forces, the official added.

About 1,500 Australian troops are deployed in the province as part of the International Security Assistance Force (ISAF).

According to ISAF , An individual wearing an Afghan National Army uniform turned his weapon against International Security Assistance Force service members in southern Afghanistan yesterday, killing three .

"The incident is currently under investigation."