While it has no claims to the South China Sea, Australia has aligned itself close to the US and its allies in saying that China's assertions have no legal basis. "Australia expects all countries, including China, to operate their militaries in a safe and professional manner," the department said in a statement on Thursday.

Australia complained to Beijing after a dangerous encounter with a Chinese fighter jet and sent a frigate to the Torres Strait to shadow three Chinese warships.

China accused Australia of deliberately "provoking" China in the South China Sea this week, and of "invading" and "breaking into" the homes of others, its defence ministry said on Friday. The ministry spokesperson said Australia was spreading "false narratives".