El Mencho killed; U.S. issues Mexico travel alert

The U.S. government is urging Americans in parts of Mexico — including the popular tourist destination of Puerto Vallarta in the state of Jalisco — to shelter in place after violence erupted following the death of cartel leader Nemesio Oseguera Cervantes, known as “El Mencho.”

In a security alert issued Sunday, the U.S. Embassy in Mexico advised U.S. citizens in Jalisco, Tamaulipas, parts of Michoacán, Guerrero and Nuevo León to remain indoors “until further notice” due to ongoing security operations, road blockades and criminal activity.

Mexican authorities confirmed that Oseguera Cervantes, the longtime leader of the Jalisco New Generation Cartel (CJNG), died after being injured during a federal security operation in Tapalpa, Jalisco — about a two-hour drive southwest of Guadalajara, according to the Associated Press. Oseguera Cervantes died while being flown to Mexico City, according to the Department of Defense.

The Mexican government said the operation targeted cartel activity in the region. According to reports, multiple cartel members were also killed during the confrontation.

El Mencho had been one of Mexico’s most wanted drug traffickers and led one of the country’s most powerful criminal organizations.

Following confirmation of his death, coordinated violence broke out across western Mexico. Residents and local officials reported burning vehicles and blocked roads in several cities, a tactic commonly used by criminal groups to disrupt security forces and restrict movement.

The New York Times reported that at least seven cartel members were killed during the operation, and that vehicles were set on fire across multiple states in the hours that followed.

The U.S. Embassy has advised Americans in Jalisco, including Puerto Vallarta, to shelter in place until further notice because of ongoing security operations and road blockades.

That does not mean violence is occurring everywhere in the region, but conditions can change quickly — particularly on highways and near law enforcement activity.

Officials in Jalisco said some public transportation would be suspended and urged hotels to keep guests inside. Panic spread briefly near Guadalajara International Airport, though authorities said flights continued operating normally.

In addition to the shelter-in-place, advisory, the embassy also recommends that U.S. citizens:

• Avoid areas where law enforcement or military operations are underway
• Limit road travel, especially on highways where blockades have been reported
• Monitor local news and official updates
• Follow instructions from local authorities and hotel staff
• Inform family and friends of their whereabouts

The alert does not order evacuations but urges Americans to remain cautious as conditions develop.

The Jalisco New Generation Cartel (CJNG) is considered one of Mexico’s most powerful criminal organizations.

According to the Drug Enforcement Administration, CJNG is a major supplier of fentanyl, methamphetamine and cocaine to the United States. The DEA has described the group as “one of Mexico’s most powerful, influential, and ruthless transnational criminal organizations.”

Formed around 2011, CJNG has operations across much of Mexico and associates in nearly all 50 U.S. states, according to federal officials.

In recent years, U.S. authorities have arrested or prosecuted several high-profile CJNG figures, including El Mencho’s son Rubén Oseguera-González, known as “El Menchito,” and other senior members.

Nemesio Oseguera Cervantes, known as “El Mencho,” co-founded CJNG and served as its leader. He was indicted multiple times in the United States on drug trafficking charges. Before his death, the U.S. State Department had offered a reward of up to $15 million for information leading to his arrest or conviction.