Son of "El Chapo" and Sinaloa cartel members hit with U.S. sanctions over fentanyl trafficking

A son of notorious drug lord Joaquin "El Chapo" Guzman and three other members of the Sinaloa cartel have been sanctioned by the U.S. government, officials announced Tuesday. 

Joaquin Guzman Lopez, 36, is one of El Chapo's 12 children and the fourth member of Los Chapitos, the nickname given to the sons of El Chapo who allegedly run a powerful faction of his drug empire. 

On Tuesday, he was marked as "designated" by the U.S. Department of the Treasury's Office of Foreign Assets Control (OFAC). A person or entity listed as "designated" has their assets blocked, and U.S. persons are "generally prohibited from dealing with them," OFAC says. People who deal with them may face sanctions themselves.