An alleged leader from Japan’s Yakuza crime syndicate has pleaded guilty to trafficking nuclear materials from Myanmar as part of a global web of trades in drugs, weapons and laundered cash, according to the US Department of Justice.

The leader of a Japanese crime syndicate who was charged by U.S. authorities with trafficking nuclear materials from Myanmar pleaded guilty on Wednesday, the U.S. Justice Department said in a statement.

A leader of Japan's Yakuza crime syndicate who tried to sell Iran weapons-grade plutonium has pleaded guilty to charges of trafficking narcotics, weapons and nuclear material.