Mexico’s most wanted cartel leader, Nemesio Rubén Oseguera Cervantes, known as El Mencho, has been killed in a Mexican military operation, triggering days of violent reprisals across several states, shutting roads, disturbing flights, and forcing both the United States and Canada to warn citizens as security forces try to regain control.
The Mexican army said the 59-year-old head of the Jalisco New Generation Cartel was wounded during a clash with soldiers near Tapalpa in Jalisco and died while being airlifted to Mexico City, in what officials describe as one of the most significant blows against organised crime since the captures of Joaquín El Chapo Guzmán and Ismael Zambada García.
Jalisco New Generation Cartel operation in Tapalpa and death of El Mencho
According to Mexico’s Secretariat of National Defence, troops and other federal security units mounted a coordinated raid in the mountain town of Tapalpa in western Jalisco, where Oseguera came under fire and was hit during a gun battle before dying onboard a military aircraft en route to the capital after receiving emergency medical attention.
Officials reported that six suspected Jalisco New Generation Cartel gunmen were killed in the fighting, three soldiers were wounded and moved to a Mexico City hospital, and two alleged cartel members were detained, while security forces seized heavy weapons, including rocket launchers designed to destroy armoured vehicles and target aircraft used by authorities.
An AP report, quoting a federal official speaking anonymously because that person was not authorised to brief the media, confirmed that Oseguera’s killing occurred during the military operation in Jalisco, matching the army’s version of events and reinforcing the government’s claim that El Mencho did not die from illness or natural causes.
US, Canada travel advisories after Jalisco New Generation Cartel violence
The unrest that followed led the US State Department to issue an urgent warning, urging Americans in affected regions to stay indoors and limit movements, as criminal groups linked to the Jalisco New Generation Cartel set up roadblocks, torched vehicles and clashed with soldiers, disrupting daily life in several areas popular with international visitors and local travellers.
In its advisory, posted on social media, the US government said: “Mexico: Due to ongoing security operations and related road blockages and criminal activity, U.S. citizens in the following locations should shelter in place until further notice: Jalisco State (including Puerto Vallarta, Chapala, and Guadalajara), Tamaulipas State (including Reynosa and other municipalities), areas of Michoacan State, Guerrero State, and Nuevo Leon State.”
The guidance also advised people to avoid locations where police or soldiers were operating, reduce unnecessary journeys, keep track of updates from local news, obey instructions given by Mexican authorities, and contact emergency services by dialling 911 if help was needed, reflecting concern that clashes could flare suddenly along highways and in city streets.
Canada’s Ministry of Foreign Affairs said it was watching the “serious and rapidly evolving security situation” in Jalisco, highlighting Guadalajara and Puerto Vallarta, and urged Canadian citizens in these zones to follow shelter-in-place directions issued by local or federal officials while the Jalisco New Generation Cartel-related violence continued and security sweeps remained underway.
Wave of reprisals linked to Jalisco New Generation Cartel
Hours after the operation became public, armed groups believed to be aligned with the Jalisco New Generation Cartel blocked more than 20 roads across western Jalisco using hijacked and burning cars and trucks, with the unrest spreading out from Tapalpa to Guadalajara, Puerto Vallarta, and then into neighbouring states Michoacan and Guanajuato.
Authorities in Guanajuato reported arson attacks against pharmacies and convenience shops, stating that “No injuries have been reported, but there has been property damage,” and confirming that a joint deployment of army units, National Guard personnel, and municipal police had been sent to stabilise streets and prevent further attacks on businesses and public infrastructure.
Residents described fear and confusion as the violence unfolded; Maria Medina, who works at a petrol station that was torched, said armed men forced people to leave the site. “I thought they were going to kidnap us. I ran to a taco stand to take cover with the people there,” she told AFP.
Jalisco Governor Pablo Lemus Navarro appealed for people to stay at home, announced that public transport services would be halted “until the situation is under control,” and warned that Jalisco New Generation Cartel-linked unrest had already reached at least five states, advising motorists to avoid highways where vehicles had been attacked or used as burning barricades.
In Guadalajara, usually one of Mexico’s busiest cities, streets turned quiet as shops, pharmacies and fuel stations closed their shutters, with many residents sheltering indoors and employers suspending activities while security forces tried to clear blockades and remove burnt vehicles left by suspected cartel members responding to the death of El Mencho.
Sporting events, travel and flights hit by Jalisco New Generation Cartel fallout
The security crisis forced Mexican authorities to curtail public life more broadly, with Jalisco, which is scheduled to host four matches of the 2026 World Cup this summer, suspending all large gatherings on Sunday and cancelling face-to-face classes on Monday as officials judged that Jalisco New Generation Cartel-linked violence created unacceptable risks for crowds and school transport.
Several football fixtures were postponed, including games from the Clausura tournament in Mexico’s Liga MX, matches in the women’s league, and an international friendly between Mexico and Iceland, as organisers faced logistical problems and safety concerns on routes to stadiums and in host cities dealing with blockades and the presence of armed groups.
Air travel also felt the impact, with United States and Canadian airlines scrapping dozens of flights into Mexico because of uncertainty over security and airport access, while Air Canada halted services to Puerto Vallarta, a major Pacific beach destination, leaving tourists and residents dealing with cancellations linked indirectly to the Jalisco New Generation Cartel crackdown.
International reaction, politics and rise of Jalisco New Generation Cartel
US Deputy Secretary of State Christopher Landau praised the outcome of the raid and called Oseguera “one of the bloodiest and most ruthless drug kingpins,” adding: “This is a great development for Mexico, the US, Latin America, and the world,” comments that underscored Washington’s long-standing focus on the Jalisco New Generation Cartel.
The operation came amid renewed political pressure from US President Donald Trump on Mexico to restrict the flow of drugs, especially fentanyl, across the border, with Trump repeatedly threatening tariffs on Mexican exports and accusing the Mexican government of failing to do enough to curb trafficking by cartels including the Jalisco New Generation Cartel.
The US Justice Department charged Oseguera in 2022 with leading efforts to produce and ship fentanyl into the US, alleging in an indictment that the Jalisco New Generation Cartel ran operations in Mexican states such as Jalisco, Colima and Veracruz, while maintaining a broader network that reached across much of the national territory.
The United States had placed a reward of up to 15 million dollars for information that would lead to Oseguera’s capture, and in February, the Trump administration labelled the Jalisco New Generation Cartel a foreign terrorist organisation, signalling that Washington viewed the group’s activities as a serious threat to US security and regional stability.
Formed in 2009, the Jalisco New Generation Cartel expanded quickly into one of Mexico’s most powerful and violent criminal groups, which US agencies say trafficked cocaine, heroin, methamphetamine and fentanyl into the United States, challenging older cartels and engaging in frequent battles with both rivals and Mexican security forces.
Oseguera, who previously worked as a police officer, led the Jalisco New Generation Cartel as it widened its territorial control and influence, often confronting authorities directly; the US Drug Enforcement Administration has described the organisation as one of the “most powerful and ruthless criminal organisations” operating in Mexico, reflecting its reach and methods.
| Key detail | Information |
|---|---|
| Cartel leader | Nemesio Rubén Oseguera Cervantes (El Mencho) |
| Age | 59 |
| Cartel | Jalisco New Generation Cartel |
| Location of raid | Tapalpa, Jalisco |
| States hit by unrest | Jalisco, Michoacan, Guanajuato, Tamaulipas, Guerrero, Nuevo Leon |
| US reward | Up to 15 million dollars |
Mexican President Claudia Sheinbaum appealed for calm after the violent reaction to the killing of El Mencho, saying the federal government was working closely with state authorities to restore order, yet the speed and scale of Jalisco New Generation Cartel reprisals highlighted how strongly armed criminal groups can still disrupt public life and challenge state power.