Australia's defense minister has ordered the military to review security measures over concerns that Beijing is recruiting Australian pilots to train the Chinese People's Liberation Army, the AP reported.

Defence minister Richard Marles ordered the review after earlier asking to investigate reports that China had approached former Australian servicemen to become instructors.

The defence minister said on Wednesday that enough evidence had been provided to warrant a “detailed examination into the adequacy of current defence policies and procedures”, and that to reveal Australian military secrets was a “clear and unambiguous” crime.

He said a joint police and intelligence task force is investigating a number of cases among former military personnel.