The ministry said it had seized firearms and ammunition in 16 different provinces and cities in a case that was jointly investigated by US authorities.
Last month, US federal prosecutors said a member of the US National Guard and two Chinese citizens had been charged with smuggling multiple shipments of firearms to China.
Private gun ownership is tightly restricted in China and gun crime is unusual.
China's public security ministry said the investigation started with the detention last August of a Chinese man at Shanghai's Pudong Airport after a package was discovered with weapons.
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@Moise: or diplomat at large ;-)
Read article again before badmouthing US. It was US investigators who helped crack the racket.
Another US aid worker, helping world with democracy and vaccines.