A satellite image from March 10, taken by Maxar Technologies, shows the Zhou-class sub, with its signature x-shape tail, docked at the port. Additional Maxar imagery reviewed by CNN from later in June shows that the sub did not return to the pier. “It’s not surprising that the PLA Navy would try to conceal the fact that their new first-in-class nuclear-powered attack submarine sank pierside,” said the senior US defense official.
The unusual activity at the shipyard was first noticed by Tom Shugart, an adjunct senior fellow at the Center for a New American Security who routinely studies satellite imagery of Chinese shipyards.