A Mexico travel warning was issued by the United States and Canada after cartel leader Nemesio Oseguera was killed during a military operation, prompting violent unrest, roadblocks and major flight cancellations across parts of western Mexico.
The US State Department on Sunday advised American citizens in affected areas to shelter in place due to ongoing security operations and criminal activity. In a statement posted by its Bureau of Consular Affairs, the department said widespread roadblockages and security incidents had disrupted transport and aviation services.
“Due to ongoing, widespread security operations and related roadblocks and criminal activity in many areas of Mexico, US citizens should shelter in place until further notice,” the statement said.
Authorities confirmed that Nemesio Oseguera, 59, leader of the Jalisco New Generation Cartel, was wounded in a clash with Mexican soldiers in the town of Tapalpa, Jalisco state. According to a statement from the Mexican army, he died while being transported by air to Mexico City. Oseguera had been subject to a $15 million US reward for information leading to his capture.
The operation triggered immediate security consequences in Jalisco and neighbouring regions. Roadblocks were reported in multiple locations, affecting access to airports and highways. The US State Department said airline operations were impacted in Guadalajara and Puerto Vallarta, where both domestic and international flights were cancelled.
Canada’s government also issued a Mexico travel warning, advising Canadian citizens to remain vigilant and follow local authority guidance. Ottawa urged travellers in Michoacán, Guerrero and Jalisco states to shelter in place, citing reports of shootouts with security forces and explosions.
The aviation sector responded swiftly. US carriers United Airlines, American Airlines, Southwest Airlines and Alaska Airlines cancelled flights to Puerto Vallarta, Guadalajara and Manzanillo. Canadian operators Air Canada and WestJet/Sunwing also suspended services to affected destinations.
Several aircraft already en route to Mexico were forced to return to their departure cities. Southwest Airlines confirmed that four flights bound for Puerto Vallarta were diverted mid-air. The airline stated it would deploy aircraft to repatriate stranded passengers and crew once security conditions stabilise.
The coordinated travel warnings reflect the political and security sensitivity surrounding the death of one of Mexico’s most powerful cartel figures. The Jalisco New Generation Cartel has been designated by US authorities as a major transnational criminal organisation involved in narcotics trafficking and violence.
For policymakers, the developments underline the direct impact of security operations on cross-border travel, tourism revenues and regional economic stability. Mexico’s Pacific coast, including Puerto Vallarta and Manzanillo, is a significant hub for tourism and maritime trade, sectors closely linked to North American economic integration.
The unrest also highlights the broader security risks facing key infrastructure in western Mexico, including airports, highways and port facilities. Disruptions in these corridors can affect supply chains, passenger flows and commercial logistics across the region.
US and Canadian authorities have not indicated how long the travel warnings will remain in effect. Both governments said they are monitoring the situation closely and will update guidance as conditions evolve.
Travellers currently in affected areas have been advised to remain indoors, avoid public gatherings and maintain contact with their respective embassies or consulates.
