Mexican authorities said 20 dead bodies, including five decapitated corpses, were discovered in the cartel-plagued city of Culiacan on Monday.

Authorities discovered four decapitated bodies hanging from a highway bridge near the city. The victims’ heads were located close by in a plastic bag, as reported by the Associated Press.

Recently, the U.S. placed sanctions on the organization known as Los Chapitos, labeling it a Specially Designated Global Terrorist. At that time, the U.S. Treasury Department explained in a statement that this group is involved in the production and distribution of fentanyl.

“Los Chapitos is a powerful, hyperviolent faction of the Sinaloa cartel at the forefront of fentanyl trafficking in the United States,” Treasury Secretary Scott Bessent said last month. “At the Department of the Treasury, we are executing on President Trump’s mandate to completely eliminate drug cartels and take on violent leaders like ‘El Chapo’s’ children.”

Gunmen linked to the Sinaloa cartel were also involved in the Oct. 18, 2024, killing of U.S. Marine veteran Nicholas Quets in Sonora, Mexico.

The Attorney General’s Office of the State of Sinaloa did not immediately respond to Fox News Digital’s request for comment.