The U.S. official said it was "not surprising" that China's navy would conceal it. The submarine's current status is unknown.

Satellite imagery showed that China's newest nuclear-powered attack submarine sank alongside a pier while under construction, ...

WASHINGTON--China's newest nuclear-powered attack submarine sank earlier this year, a senior U.S. defense official said on ...

Defence ministers from the UK, US and Australia have been meeting in London to outline plans for Pillar I and Pillar II ...

We] probably would need some time to figure out what the timetable is [for industry solicitations] because part of it requires three nations to commit funds, and so I wouldn't want to get ahead of ...

In a major embarrassment for Beijing, China's new nuclear-powered attack submarine sank earlier this year, a senior US ...