A son of former Sinaloa cartel leader Joaquin “El Chapo” Guzmán has pleaded not guilty in federal court in Chicago.

The United States has sanctioned a son of Mexican drug lord Joaquin “El Chapo” Guzman, three members of the Sinaloa cartel and two Mexican-based firms, alleging they trafficked fentanyl and other drugs into the U.S. Tuesday's sanctions came the day Mexican President Andrés Manuel López Obrador talked with President Joe Biden about immigration and the fentanyl crisis.

The son of infamous former Sinaloa cartel boss Joaquín “El Chapo” Guzmán was arrested in Mexico Thursday.

Videos from journalists in Mexico showed Culiacán, Sinaloa, a stronghold of the cartel once headed by Sinaloa cartel boss Joaquín “El Chapo” Guzmán, in fiery chaos following the arrest of one of his sons.

A U.S. appeals court has upheld the conviction of the notorious Mexican drug lord known as El Chapo.

FILE - In this Feb. 12, 2019 file photo, Emma Coronel Aispuro, center, wife of Joaquin "El Chapo" Guzman, leaves federal court in New York. The wife of Mexican drug kingpin and escape artist Joaquin El Chapo Guzman has been arrested on international drug trafficking charges at an airport in Virginia. (AP Photo/Seth Wenig)WASHINGTON – The wife of Mexican drug kingpin Joaquin “El Chapo” Guzman was arrested in the United States and accused of helping her husband run his multibillion-dollar cartel and plot his audacious escape from a Mexican prison in 2015. Her arrest is the latest twist in the bloody, multinational saga involving Guzman, the longtime head of the Sinaloa drug cartel. After Guzman was rearrested following his escape, Coronel lobbied the Mexican government to improve her husband’s prison conditions.