Cartel Retaliation After El Mencho’s Death Paralyzes Parts of Mexico as the Country Prepares to Host FIFA World Cup 2026

Mexico City: The death of Nemesio Ruben Oseguera Cervantes, widely known as “El Mencho”, leader of the powerful Jalisco New Generation Cartel (CJNG), has triggered a wave of violent retaliation and fear across large parts of Mexico, officials and local witnesses said Monday, as security forces work to contain unrest that erupted following his killing in a military operation.

Oseguera, 59, was killed on Sunday in the western state of Jalisco during a coordinated military raid that Mexican authorities said was supported with intelligence from US agencies. The operation, aimed at apprehending the longtime drug lord, resulted in intense fighting and the seizure of heavy weapons.

Within hours of news of his death spreading, gunmen loyal to the cartel launched an organized backlash, lighting vehicles on fire, erecting blockades on major highways and igniting scenes of chaos in at least a dozen states from Jalisco and Michoacan to Guanajuato and Tamaulipas. Videos circulating on social media showed smoke billowing over Puerto Vallarta and flames burning along highways, as residents fled or took shelter in places.

Authorities confirmed that several National Guard members were killed in clashes with armed cartel elements, and multiple states reported disrupted transportation and suspended public services as security forces struggled to restore order. Major airlines, including Air Canada and United Airlines, cancelled flights to Guadalajara and Puerto Vallarta amid safety concerns, according to travel advisories.

In Guadalajara — a key urban centre and host city for the upcoming FIFA World Cup — business districts and transport hubs were all but deserted as citizens heeded warnings to stay indoors and avoid non-essential movement. Local officials said the “fear in society is overwhelming,” with residents acutely aware of the cartel’s capability to halt normal life within minutes.

Mexico’s President Claudia Sheinbaum acknowledged the violence while praising the security forces for a “high-stakes operation,” and stressing coordination with state governments to maintain peace. Despite the government’s messaging, analysts warn that the death of a figure as central as El Mencho — long one of Mexico’s most wanted traffickers — may create a power vacuum and spark further clashes as rival factions compete for control.

The US State Department issued its own security alert, urging American citizens in states affected by the unrest to shelter in place as the situation remains unpredictable. Governments of other countries also updated travel advisories, highlighting the broader concern over safety for foreigners in affected regions.

El Mencho’s cartel, notorious for trafficking fentanyl, methamphetamine and cocaine into the United States and known for using military-style firepower, has been one of the most violent criminal organisations in Mexico. While his death represents a major blow to the CJNG’s leadership, security experts caution that violence could persist or even escalate if competing leaders within the cartel seek dominance in the aftermath of his removal.