A son of Mexican drug lord Joaquin “El Chapo” (Shorty) Guzman is among six people kidnapped at a restaurant in this Pacific resort city, Jalisco state Attorney General Eduardo Almaguer said Tuesday.

An examination of items found in the cars of the victims, sitting abandoned in the restaurant parking lot, allowed authorities to confirm that Jesus Alfredo Guzman Salazar, 29, is one of the hostages, Almaguer told a press conference in Puerto Vallarta.

The attorney general said the mass abduction was the work of the Cartel Jalisco Nueva Generacion, which was created in 2010 as a cell of the Chapo-led Sinaloa drug cartel.

The Sinaloa organization rose to become one of the main sources of narcotics entering the United States.

Chapo Guzman is being held at a prison in Ciudad Juarez, located across the border from El Paso, Texas.

Initial reports said 16 people were kidnapped around 1:00 a.m. Monday from the La Leche restaurant in a crime apparently linked to a fight between rival gangs.

“To clarify, seven armed subjects overpowered and kidnapped six people, six men who at the time were accompanied by approximately nine women,” who were not abducted and have not been located, Almaguer said earlier Tuesday.

One of the men kidnapped from the restaurant is a relative of a retired army captain who served as a bodyguard for former Jalisco Gov. Emilio Gonzalez Marquez.

The Cartel Jalisco Nueva Generacion was blamed for the March 19, 2015, attack on the Federal Police in the city of Ocotlan that left five officers and two civilians dead, unleashing a wave of violence in Jalisco state. EFE