Alleged Sinaloa Cartel leader Ismael “El Mayo” Zambada was kidnapped by fellow cartel member Joaquín Guzmán López near Culiacán, the same place where former Culiacán mayor Héctor Cuén was killed. That’s the story according to Zambada himself . Now, it looks like the Federal Attorney General’s Office (FGR) agrees.

The FGR released a statement on the Zambada-Guzmán López case on Wednesday, almost one month after the two men were arrested at an airport near El Paso, Texas , after flying into the United States on a private plane. It said that a request for an arrest warrant for Guzmán López on charges of abduction of a person in Mexico in order to hand him over to the authorities of another country has been prepared. The FGR previously said that such actions constitute treason .

Guzmán López is one of “Los Chapitos,” the sons of convicted drug lord Joaquín “El Chapo” Guzmán. The Attorney General’s Office said on Wednesday that it had established “with complete precision” the airfield where the plane used for the “alleged kidnapping” of Zambada took off. In a statement released by his lawyer, Zambada , asserted that he was “ambushed” at a ranch and event center just outside Culiacán after being lured by Guzmán López to a supposed meeting between Cuén and Sinaloa Governor Rubén Rocha Moya.

“A group of men assaulted me, knocked me to the ground, and placed a dark-colored hood over my head,” the 76-year-old sai.