Mexico under Siege – Americans in Country told to Shelter-in-Place

Mexico’s Secretariat of National Defense announced that Mexican Army Special forces carried out an operation in Tapalpa, Jalisco, aimed at capturing Rubén “N,” alias “Mencho,” the alleged leader of the Jalisco New Generation Cartel (CJNG).

During the operation, troops were attacked and returned fire, leaving four suspected cartel members dead at the scene and three others fatally wounded during air transport to Mexico City; authorities say one of those who died may be “El Mencho,” though forensic identification is still pending.

Two additional suspects were arrested, and authorities seized weapons and armored vehicles, including rocket launchers capable of downing aircraft.

Three Mexican service members were injured and transported for emergency treatment.

The operation reportedly included intelligence cooperation from the United States, and additional National Guard and Army personnel are being deployed to reinforce security in Jalisco.

The death or capture of Nemesio Oseguera Cervantes — one of the world’s most powerful drug traffickers and a major supplier of fentanyl and methamphetamine to the United States — would represent a major development in Mexico’s fight against organized crime.

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Surge of Violence and Emergency Security Measures – US Citizens “Shelter-in-Place”

Mexico is experiencing a rapid surge of violence and emergency security measures following a major military operation targeting the leader of the Jalisco New Generation Cartel (CJNG). Reports indicate that the alleged killing of cartel boss Nemesio “El Mencho” Oseguera Cervantes triggered immediate retaliatory attacks and widespread unrest in several regions.

In the hours following the operation, violence spread across parts of western Mexico widely considered CJNG strongholds. Armed groups reportedly set vehicles on fire, erected roadblocks, and opened fire in several locations, creating widespread disruption and fear.

Incidents have been reported in and around Guadalajara and tourist areas including Puerto Vallarta, while highways were blocked and businesses forced to close amid security concerns. Transportation has been disrupted in some areas due to fires, barricades, and safety threats.

Authorities and foreign consulates issued urgent security advisories as the unrest escalated. Residents in affected areas were urged to remain indoors, avoid public spaces, and limit travel. Some municipalities suspended classes, canceled public events, and reduced public transit service as precautionary measures. The U.S. government warned its citizens in impacted regions to shelter in place until conditions stabilize.

The violence is concentrated primarily in Jalisco and neighboring states such as Michoacán, Colima, and Guanajuato, though security alerts have been broadened due to potential spillover risks. Mexican authorities are deploying additional National Guard and Army personnel to reinforce security and restore order.

Security analysts note that cartel retaliation is a common response when high-ranking leaders are targeted. Such actions are intended to demonstrate strength, intimidate authorities, and disrupt law enforcement operations. Experts caution that CJNG’s decentralized structure allows it to continue operating, though internal power struggles could trigger further instability.

CJNG is considered one of the most powerful and militarized criminal organizations in the world, known for trafficking fentanyl and methamphetamine into the United States and for using military-grade weapons and armored vehicles. The loss of its longtime leader would mark one of the most significant developments in Mexico’s fight against organized crime in years — but in the short term, authorities warn the security situation remains fluid and potentially volatile.

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Translated statement from the Secretary of the Ministry, Mexico:

The federal government reports on an operation to detain Rubén “N” (alias) Mencho.

Secretariat of National Defense | February 22, 2026 | Press Release

Lomas de Sotelo, Mexico City, Feb. 22, 2026 — The public is hereby informed that, through centralized military intelligence efforts, the National Intelligence Center, and the Office of the Attorney General (FEMDO), Mexican Army Special Forces planned and executed an operation in Tapalpa, Jalisco. The operation involved multiple Air Force aircraft and the National Guard’s Immediate Reaction Special Force to achieve the detention of Rubén “N,” alias “Mencho.”

During the operation, military personnel were attacked. In defense of their safety, they returned fire, resulting in four members of the criminal group “CJNG” killed at the scene and three seriously wounded, who died during air transport to Mexico City. Among the latter was Rubén “N,” alias “Mencho”; however, the appropriate authorities will carry out forensic procedures for identification.

In addition, two other members of this criminal organization were arrested, and various weapons and armored vehicles were seized, including rocket launchers capable of shooting down aircraft and destroying armored vehicles.

Unfortunately, during this military action, three service members were injured. They were also transported to medical facilities in Mexico City for emergency treatment.

It should be noted that, in addition to centralized military intelligence work, this operation was conducted within the framework of bilateral coordination and cooperation with the United States, and included supplementary information provided by authorities from that country.

At this time, National Guard personnel and Army troops from central Mexico and states neighboring Jalisco are being deployed to reinforce security in that federal entity.

Through these actions, the Secretariat of National Defense reaffirms its commitment to strengthening Mexico’s security.

Army, Air Force, and National Guard — the Great Force of Mexico

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As of the latest credible reporting and official advisories, there are no confirmed reports of Americans killed or injured in the violence linked to the security operation targeting CJNG leadership in western Mexico. U.S. citizens have been warned to shelter in place in parts of Jalisco and nearby states due to cartel retaliation and security operations. Advisories emphasize avoiding travel, staying indoors, and monitoring local media. Some transportation disruptions and road blockades have affected tourist routes and airport access, but these are precautionary concerns rather than reports of targeted harm to foreigners.

Historically, cartel retaliation following major arrests or killings is directed at government forces, rival groups, infrastructure, and symbolic targets, not tourists or foreign nationals. However, risks increase due to stray gunfire, vehicle burnings and roadblocks, and sudden armed confrontations. The situation remains fluid, and authorities continue urging caution.

US Advisory to Americans

The U.S. government has warned Americans in multiple Mexican states to shelter in place and limit movement due to cartel retaliation and security operations. The guidance is precautionary but reflects a volatile and evolving security situation.  The US statement:

“Due to ongoing security operations and related road blockages and criminal activity, U.S. citizens in a number of locations in Mexico are urged to shelter in place. U.S. government staff in Guadalajara (Jalisco), Puerto Vallarta (Jalisco/Nayarit), Ciudad Guzman (Jalisco), Cancun (Quintana Roo), Playa del Carmen (Quintana Roo), Cozumel (Quintana Roo), Reynosa (Tamaulipas state), Tijuana (Baja California), and Michoacan will shelter in place and work remotely on Monday, February 23, and U.S. citizens should do the same. All U.S. government staff at Consulate General Monterrey have been directed to remain in the Monterrey metropolitan area, and U.S. government staff have been directed not to travel to Mazatlan through Wednesday, February 25.

While no airports have been closed, roadblocks have impacted airline operations, with most domestic and international flights cancelled in both Guadalajara and Puerto Vallarta. All ride shares are suspended in Puerto Vallarta. Some businesses have suspended operations.

Mexican authorities announced late February 22 that operations will be temporarily curtailed on toll roads in Puebla, Guerrero, Tamaulipas, Nayarit, San Luis Potosi, Tijuana, Queretaro, Veracruz, and Mazatlan due to blockades that have affected motorists.

Actions to Take:

• Seek shelter and minimize unnecessary movements.
• Avoid areas around law enforcement activity.
• Check @CAPUFE on X for status of road closures.
• Monitor local media for updates.
• Follow the directions of local authorities and in case of emergency, call 911.
• Keep family and friends advised of your location and well-being via phone, text, and social media.

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Who is “El Mencho”?

Nemesio Oseguera Cervantes

Alias: El Mencho
Age: 50s (exact birth year disputed)
Role: Leader & co-founder of the Jalisco New Generation Cartel (CJNG)
Nationality: Mexican
Origin: Michoacán, Mexico

• One of the world’s most powerful drug traffickers

• Built CJNG into a global fentanyl & meth trafficking network

• Known for militarized tactics and extreme violence

• CJNG has shot down military aircraft and used armored convoys

• Considered a major supplier of fentanyl to the United States

U.S. criminal status

• Indicted in U.S. federal court for drug trafficking & organized crime

• FBI & DEA target

• U.S. reward: up to $10 million for information leading to capture

Mexican President said using force against cartels would breach human rights:

“Returning to the war against the narco is not an option. First, because it is outside the framework of the law.” pic.twitter.com/nYtiZ8FEN5

— Open Source Intel (@Osint613) February 23, 2026