US Embassy Issues Security Alert for Americans in Mexico

US Embassy Issues Security Alert for Americans in Mexico
Published: 2/22/2026, 11:39:53 PM EST
US Embassy Issues Security Alert for Americans in Mexico
A burnt bus set up as a blockade by members of organized crime following a military operation in which Mexican officials said cartel boss Nemesio Oseguera, "El Mencho," was killed, at a tourist area, in Zapopan, Mexico, on Feb. 22, 2026. (Gabriel Trujillo/Reuters)

U.S. citizens in Mexico have been asked to “shelter in place” due to ongoing security operations in the country, and related road blockages and criminal activity, according to a Feb. 22 security alert from the U.S. Embassy and Consulates in Mexico.

The alert was issued following the killing of Nemesio Ruben Oseguera Cervantes, known as “El Mencho,” the notorious leader of the Jalisco New Generation Cartel (CJNG), on Feb. 22 during a Mexican government operation. CJNG, which began operations in 2009, is one of the most powerful and fastest-growing criminal organizations in Mexico.

The security alert to shelter in place is applicable to locations across Mexico including “Jalisco State (including Puerto Vallarta, Chapala, and Guadalajara), Baja California State (including Tijuana, Tecate, and Ensenada), Quintana Roo State (including Cancun, Cozumel, Playa del Carmen, and Tulum), and areas of Guanajuato, Guerrero, Michoacan, Oaxaca, Nuevo Leon, and Tamaulipas States.”

“All U.S. government staff at Consulate General Tijuana and all U.S. government staff in Guerrero, Michoacan, and Quintana Roo states have been directed to shelter in place. All U.S. government staff at Consulate General Monterrey have been directed to remain in the Monterrey metropolitan area,” according to the alert.

While no airports are closed, airline operations have been negatively impacted, the alert said. In Guadalajara and Puerto Vallarta, some international and domestic flights are canceled. In Puerto Vallarta, taxis and ride shares have suspended operations. Some businesses have also shut down temporarily.

The embassy advised Americans in Mexico to remain in their residences or hotels, and minimize unnecessary movements. U.S. citizens should be aware of their surroundings and avoid crowds or areas around law enforcement activity, it said.

The alert asked Americans to follow directions of local authorities, and call 911 in case of emergencies. It recommended monitoring local media for updates on the situation. “Keep family and friends advised of your location and well-being via phone, text, and social media.”

The death of El Mencho was confirmed in a Feb. 22 post on X by Deputy Secretary of State Christopher Landau.

“I’ve just been informed that Mexican security forces have killed ‘El Mencho,’ one of the bloodiest and most ruthless drug kingpins,” Landau wrote. “This is a great development for Mexico, the US, Latin America, and the world. The good guys are stronger than the bad guys.”

The Deputy Secretary also referenced reports of violence in Mexico following El Mencho’s death. “It’s not surprising that the bad guys are responding with terror. But we must never lose our nerve.”

The Trump administration designated CJNG and other Mexican drug cartels as foreign terrorist organizations last year. According to the State Department, the cartel is engaged in migrant trafficking, theft of oil and minerals, weapons trading, and fentanyl trafficking.

CJNG has carried out “intimidating acts of violence,” including attacks on Mexican police and military using military-grade weapons. The cartel has used drones to drop off explosives on law enforcement, and has assassinated Mexican officials, the State Department said when announcing the cartel as a terror group.

The department had offered a reward of up to $15 million for information that led to the arrest of El Mencho.

In a Feb. 22 post on X, the Embassy of Mexico in the U.S. said some incidents have occurred around the vicinity of the Guadalajara, Puerto Vallarta, and Tepic airports, but that they continue to run normally.

“Inter-institutional coordination and collaboration with various security agencies are in place to guarantee the safety of operations and all users. Emergency Operations Centers (COE) at each airport are working according to their established protocols,” the post said.

US Military Assistance

Amid the operations against CJNG carried out by federal forces, Mexican President Claudia Sheinbaum Pardo called on people to remain informed and calm in a post on X, highlighting that in the vast majority of the country, activities are proceeding as normal.

Sen. Bernie Moreno (R-Ohio) called on the Mexican government to request for U.S. military assistance to tackle the situation, according to a post on X.

“The Mexican government has to make the right decision for its people and seek US military back up to end the threat of narco terrorists before it’s too late. The drug cartels are a clear and present danger to the US and must be exterminated,” Moreno wrote.

After U.S. forces struck Venezuela last month and captured its leader Nicolás Maduro, who was detained on narco-terrorism charges, President Donald Trump had warned Mexico to “get its act together,” referring to the high impunity rates for cartel operations and violence in the country.

“You have to do something with Mexico,” Trump told reporters at the time. “We’re going to have to do something. We’d love Mexico to do it; they’re capable of doing it, but unfortunately, the cartels are very strong in Mexico.”

The State Department has assigned Mexico with an overall “Level 2-Exercise increased caution” travel advisory, citing risks from crime, kidnapping, and terrorism. Some regions are classified at a higher Level 3 or 4 security risk.

The states of Colima, Guerrero, Michoacan, Sinaloa, Tamaulipas, and Zacatecas are classified as “Level 4 – Do Not Travel.”

Assistant Secretary of State for Consular Affairs Mora Namdar has asked U.S. citizens to enroll at http://step.state.gov and follow @TravelGov, @USEmbassyMEX, or the WhatsApp “U.S. Citizens in Mexico” channel for important security updates.