The Federal Government have revealed a Chinese Spy Ship spent multiple weeks monitoring parts of Australia's Coast in August and September.
Defence Minister Peter Dutton confirmed the surveillance ship did not break any laws during the time spent on Australian waters.
Dutton said navy crews will extensively monitor communication over this period, given the notoriety of China's military forces.
"They will be involved in intelligence collection, signals collection. They will be looking to survey different attributes and have that general presence."
"China has in its fleet 355 ships and submarines, that goes to 460 within the next nine years or so. It's a concerning time."