smuggling ring

Translations
контрабандная сеть
The police uncovered a large smuggling ring operating in the city.
Полиция раскрыла крупную контрабандную сеть, действующую в городе.
Definitions
A smuggling ring is an organized group of individuals or a network that engages in the illegal transportation of goods or people across borders, often to evade law enforcement and customs regulations.