NEW YORK -- A fentanyl smuggling network based in part in Japan built a vast multinational trafficking network, Nikkei has learned.
Cryptocurrency flows and other data show ties to parties in Europe, India

Evidence indicates that a Chinese fentanyl smuggling organization set up a network that had contacts around the world. (Nikkei montage)
NEW YORK -- A fentanyl smuggling network based in part in Japan built a vast multinational trafficking network, Nikkei has learned.