Legal process against “El Cholo Iván” begins

A federal court has begun criminal proceedings against Joaquin "El Chapo" Guzmán's security chief, who was captured with him last week after a gun battle that killed five gunmen and wounded a marine.

Iván Gastelum Ávila, known as "El Cholo Iván," faces charges of drug trafficking, arms possession and the murder of a soldier in a 2013 confrontation, according to a statement Thursday.

Gastelum fled the house in Los Mochis, Sinaloa, during the firefight and escaped through the storm drains with Guzmán. Both were later apprehended on a highway outside of town.

The attorney general's office also reported the arrest of Mauricio Sánchez Garza for extradition to Texas. According to authorities, he is one of the financial operators of Guzmán's Sinaloa cartel. He faces charges of extortion and money laundering.