Chinese and US law enforcement authorities have jointly cracked a transnational criminal case involving the trafficking of new psychoactive substances, China's Ministry of Public Security said on Thursday.

The joint investigation into the case started in 2024. In February 2026, police in Tianjin arrested a suspect surnamed Gong based on clues provided by the US side. Earlier, US authorities arrested an American suspect linked to the same drug-related case in the US state of Georgia.

The successful resolution of the case reflects the institutionalized operation of China-US anti-drug law enforcement cooperation and marks another practical outcome of the two sides' coordinated efforts to combat cross-border crimes, the ministry said.

It also demonstrates the firm stance of the two countries' law enforcement agencies in showing no tolerance for drug-related criminal activities and associated transnational crimes, it added.

(With input from Xinhua)