Mexican officials have declared a nationwide security alert following the death of cartel leader Nemesio Rubén Oseguera Cervantes, widely known as ‘El Mencho’, whose killing in a military raid has set off a surge of violence across western Mexico.
The operation, backed by U.S. intelligence, was carried out in Tapalpa, Jalisco, targeting the head of the Jalisco New Generation Cartel (CJNG).
Authorities shut schools in several states and urged residents to remain indoors as gun battles, roadblocks and arson incidents spread to 20 of Mexico’s 31 states.
El Mencho died after sustaining injuries in a firefight with Mexican military forces and was flown to Mexico City. Six associates were also killed, while two suspected cartel members were arrested with weapons, including rocket launchers.
The raid quickly prompted coordinated attacks on highways, buses and private vehicles, particularly in Guadalajara, the Jalisco state capital, and Puerto Vallarta, where flights were halted. At least 26 people were reported dead, including 17 state and federal security personnel, a pregnant woman and eight CJNG members.
Jalisco governor Pablo Lemus Navarro urged the state’s 8 million residents to stay indoors, as security forces dismantled more than 250 cartel roadblocks in several states.
President Claudia Sheinbaum appealed for calm and emphasised the role of law enforcement, noting that the killing could leave a leadership vacuum within the cartel.
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Although the operation represents a significant setback for the CJNG, analysts caution that uncertainty over succession could fuel further instability. Organised crime analyst Chris Dalby warned that rivalry among El Mencho’s lieutenants may spark renewed violence if they vie for control.
His stepson, Juan Carlos, has been identified as a possible successor who could maintain cohesion within the cartel.
The U.S. welcomed the development, which followed months of pressure from the Trump administration over drug trafficking and migration at the border. Christopher Landau, former U.S. deputy secretary of state, described El Mencho as “one of the bloodiest and most ruthless drug kingpins” and called his death “a great development for Mexico, the U.S., Latin America, and the world.”
The death of Mexican drug cartel boss ‘El Mencho’ has heightened tensions nationwide, as authorities seek to curb violence, re-establish order and prevent the emergence of new criminal factions within the CJNG.
(The Guardian UK)