A GIANT Chinese submarine has been spotted in new satellite pictures - sparking concern ... if the new submarine is a extra-large uncrewed underwater vehicle (XLUUV) then it is the largest in ...

It already has at least five crewless vessels in the water but if the new submarine is a extra-large uncrewed underwater vehicle (XLUUV) then it is the largest in the world, Naval News reports.

The potential of a submarine launched UUV have been explored in the past and the efforts are projected to continue over the next 10 years. This intelligence briefing will therefore look at the ...