The Biden administration lauded the Pentagon for shooting down an alleged Chinese spy balloon off the US Atlantic coast on Saturday, but China angrily voiced its "strong dissatisfaction" at the move and said it may make "necessary responses." The craft spent several days flying over North America before it was targeted off the coast of the southeastern state of South Carolina with a missile fired from an F-22 plane, Pentagon officials said, falling into relatively shallow water just 47 feet (14 meters) deep. US Secretary of Defense Lloyd Austin called the operation a "deliberate and lawful action" that came in response to China's "unacceptable violation of our sovereignty."