The Department of the Treasury on Monday announced sanctions against the Los Chapitos faction of the Sinaloa drug cartel led by the family members of Juaquin "El Chapo" Guzman.

The Sinaloa Cartel has devolved into civil war between the supporters of the Guzman family, led by Archivaldo Iván Guzmán Salazar and Jesús Alfredo Guzmán Salazar, and the Mayos faction, led by Ismael “El Mayo” Zambada.

The Monday announcement specifically targeted the Chapitos and their leaders.

"The United States is also designating a regional network of Los Chapitos associates and businesses based in Mazatlan, Mexico," the Treasury said in a press release. "This network engages in drug trafficking, extortion, kidnapping, and money laundering."

In mid-May, the U.S. officially charged Sinaloa cartel leaders with narco-terrorism.