The US Department of the Treasury announced on 19 December 2013 new designations of senior members of Yamaguchi-gumi, said to be the largest and most prominent Japanese Yakuza syndicate, under the Transnational Criminal Organizations (“TCO”) sanctions program. In 2011, President Obama designated the Yakuza as a significant TCO and charged the Department of the Treasury with pursuing sanctions against its members and supporters. According to the US government, the Yamaguchi-gumi is involved in international criminal endeavours, including drug trafficking, human trafficking, extortion, prostitution, fraud and money laundering.

Treasury press release