Mexico Travel Alert: Foreign Office Urges Brits Indoors

Major Cartel Leader’s Demise Sparks Chaos Across Mexico, Travel Warnings Issued

The recent killing of Nemesio Ruben Oseguera Cervantes, the notorious head of the Jalisco New Generation Cartel (CJNG) known by his moniker ‘El Mencho’, on February 22, 2026, has plunged Mexico into a state of civil unrest and widespread violence. Cervantes, along with six alleged accomplices, met his end in an event that has immediately triggered significant disorder across the Latin American nation. The immediate aftermath saw widespread roadblocks and instances of vehicles being set alight, stark indicators of the immense influence the drug lord wielded throughout Mexico.

This surge in violence has directly impacted international travel, with flights to and from Mexico experiencing significant disruptions. Puerto Vallarta International Airport, situated on Mexico’s Pacific coast, was forced to announce the cancellation of all international operations and the majority of its domestic flights on Sunday, the day following the reported deaths. In response to the escalating situation, the British Foreign Office has issued a stern warning to its citizens, advising them to “stay indoors” amidst the unfolding turmoil.

Understanding the Jalisco New Generation Cartel (CJNG)

The CJNG is recognised as one of the most formidable and rapidly expanding criminal organisations operating within Mexico. Established in 2009, the cartel has a history of engaging in aggressive actions, including direct confrontations with the military. These confrontations have involved the deployment of explosives via drones and the use of landmines, demonstrating their sophisticated and ruthless tactics.

The cartel’s primary operations extend to supplying significant quantities of cocaine to the United States market. Furthermore, they generate substantial revenue from the illicit trade of fentanyl and methamphetamines, further solidifying their position as a major player in the global drug trade. The organisation’s capacity for audacious and high-profile attacks was underscored in 2020 when they orchestrated a spectacular assassination attempt in the heart of Mexico City. This attack, involving grenades and high-powered rifles, targeted the then-head of the capital’s police force, who later ascended to the role of federal security secretary.

Social media platforms have been inundated with videos capturing the dramatic scenes unfolding across affected regions. These visual accounts depict thick plumes of smoke rising over the popular tourist city of Jalisco, alongside harrowing footage of individuals fleeing through airport terminals in a state of panic.

Foreign Office Travel Advice: Navigating the Risks

The UK Foreign Office last updated its travel advisory for British citizens on February 23, 2026. The advice currently recommends against all but essential travel to the city of Tijuana. However, specific exceptions have been outlined, allowing for transit under certain conditions:

Airside transit through Tijuana Airport: Passengers remaining within the airport’s secure airside area are permitted.
The Cross Border Xpress bridge: This dedicated bridge connects airport terminals across the Mexican-US border and is accessible.
Specific road routes: Travel is permitted via the federal toll road 1D and the Via Rápida, which link Tijuana to the border.

Additionally, the Foreign Office has advised against all but essential travel to Tecate, located in Baja California, including the road networks connecting it to Tijuana. It is important to note that the state of Baja California Sur, despite its similar name, is not included in this warning.

The “all but essential travel” advisory also extends to several other Mexican states and regions, underscoring the widespread nature of the security concerns:

Chihuahua
Sinaloa (including the cities of Los Mochis and Mazatlán)
Tamaulipas
Zacatecas
Guanajuato
Michoacán (with the exception of Pátzcuaro and boat excursions on Lake Pátzcuaro)
Jalisco (excluding specific northern areas such as Bolaños, Chimaltitán, Colotlán, Hostotipaquillo, Huejúcar, Huequilla el Alto, Mezquitic, San Martin de Bolaños, Santa Maria de los Ángeles, Totatiche, and Villa Guerrero)
Colima
Guerrero
Chiapas

The Foreign Office explicitly warns that British tourists who choose to travel against this advice may find their travel insurance invalidated, adding another layer of risk for those who disregard the guidance.

Impact on Popular Tourist Destinations: Is Cancún Affected?

Cancún remains a highly sought-after holiday destination for travellers worldwide, attracting over 10 million tourists annually. According to the Foreign Office’s colour-coded travel map, as of February 23, Cancún is designated as ‘green’. This colour coding signifies that while there isn’t a blanket advisory against all essential travel, British travellers should diligently check the latest travel advice before embarking on their journeys.

While no specific warning against essential travel has been issued for Cancún, the region-specific advice highlights several points unrelated to the current political climate:

Protests by taxi drivers: Incidents have occurred where taxi drivers protest against ride-sharing services like Uber near hotels in Cancún, sometimes leading to confrontations with tourists using these services.
Government security efforts: The Mexican government has intensified its security measures to safeguard prominent tourist areas, including Cancún.
Past gang clashes: While rival gangs have clashed in Cancún previously, these incidents have generally not targeted tourists directly.
Night-time caution: Travellers are advised to exercise caution when moving around Cancún after dark, sticking to well-lit streets and designated tourist zones.
Wildlife presence: Crocodiles are known to inhabit lagoons in and around Cancún, a natural consideration for visitors.

Guidance for British Tourists Currently in Mexico

For British nationals already present in Mexico, particularly in areas experiencing direct impact, the Foreign Office has issued specific guidance. For Puerto Vallarta, the advisory states:

“Authorities in Puerto Vallarta have issued a public advisory to stay indoors. Routes to airports may be blocked. You should exercise extreme caution, follow local authorities’ advice, including orders to stay indoors and avoid non‑essential travel in affected areas.”

The Foreign Office further notes reports of road blockades in various affected states and stresses the importance of closely monitoring local media and adhering to official advisories.

“Security incidents have also been reported in other parts of Mexico. As the situation develops, wherever you are in Mexico, you should stay alert and follow local security advice,” the advisory continues.

British tourists in Mexico requiring emergency assistance can reach out to: