The Mexican army has killed Nemesio Rubén Oseguera Cervantes, widely known as “El Mencho”, the leader of the Jalisco New Generation Cartel, in a major security operation that has triggered violent reprisals across several states.

Oseguera Cervantes, who headed the powerful CJNG criminal organisation, was wounded during a firefight with troops in Tapalpa, Jalisco, and died while being airlifted to Mexico City, according to Mexico’s Defence Department. The operation reportedly left multiple suspected cartel members dead, others injured, and two people arrested. Security forces also seized armoured vehicles, rocket launchers and other high-powered weapons. Three members of the armed forces were wounded and are receiving medical treatment.

In the hours following confirmation of his death, cartel gunmen set vehicles alight and erected roadblocks in a number of states. Plumes of smoke were seen rising above major roads, while parts of Guadalajara were described as deserted as residents stayed indoors. Schools in affected regions were closed as authorities sought to restore order.

Amid the unrest, the Embassy of India in Mexico issued an advisory urging Indian nationals to shelter in place. In a statement posted on social media, the mission warned of ongoing security operations and related road blockages in Jalisco state — including Puerto Vallarta, Chapala and Guadalajara — as well as in Tamaulipas, Michoacán, Guerrero and Nuevo León.

The embassy advised citizens to avoid areas where law enforcement activity is under way, remain alert to their surroundings, and minimise unnecessary travel. It also encouraged people to monitor local media for updates, follow instructions from local authorities and contact emergency services by dialling 911 if required. Indian nationals were further urged to keep family and friends informed of their whereabouts and well-being.

The killing of Oseguera Cervantes marks one of the most significant blows against organised crime in recent years, but the immediate aftermath has underscored the volatility that often follows high-profile cartel operations. Authorities remain on heightened alert as security forces continue patrols in affected regions. (With inputs from Agencies)