China’s newest nuclear-powered attack submarine sank in the spring, a major setback for one of the country’s priority weapons programs, U.S. officials said.
The episode, which Chinese authorities scrambled to cover up and hasn’t previously been disclosed, occurred at a shipyard near Wuhan in late May or early June.
It comes as China has been pushing to expand its navy, including its fleet of nuclear-powered submarines.
The Pentagon has cast China as its principal long-term “pacing challenge,” and U.S. officials say that Beijing has been using political and military pressure to try to coerce Taiwan, a separately governed island that Beijing claims as part of its territory.
China says its goal in building a world-class military is to deter aggression and safeguard its overseas interests. A spokesman for the Chinese embassy didn’t immediately respond to a request for comment.
The U.S. doesn’t know if the sub was carrying nuclear fuel at the time it sank, but experts outside the U.S. government said that was likely.