TEOTIHUACAN, Mexico — April 20, 2026 — A gunman opened fire from the summit of the Pyramid of the Moon at the Teotihuacan archaeological site on Monday, killing one tourist and wounding multiple visitors in an attack that has shaken Mexico’s tourism sector and raised fresh safety concerns ahead of the 2026 FIFA World Cup.

Witnesses said the shooter fired repeatedly from the top of the ancient structure, at times ordering people to lie down before continuing to fire and move across the monument. Security personnel and emergency responders arrived within minutes; the assailant was later found dead at the scene from an apparent self-inflicted wound. Authorities recovered a .38‑caliber revolver, a knife and additional ammunition at the site.

Mexican officials confirmed one confirmed fatality, identified in media reports as a Canadian tourist, and at least 13 people injured, some by gunfire and others hurt in the panic that followed the shooting. Victims were treated at nearby hospitals; several remained under medical care as investigators continued to process the scene.

Teotihuacan, a UNESCO World Heritage site northeast of Mexico City, draws millions of visitors each year to its pyramids and avenues. The attack — on one of the country’s most visited cultural landmarks — is rare in its brazenness and location, and it has prompted immediate questions about security at open-air archaeological sites that allow public access to elevated areas.

Federal and local authorities have launched an investigation into the motive and circumstances of the attack. Officials said they were examining surveillance footage and witness statements to determine whether the shooter acted alone or had any accomplices, and to establish a clear timeline of events. At the time of reporting, investigators had not released a definitive motive.

The incident comes less than two months before Mexico is scheduled to host matches for the 2026 FIFA World Cup, a tournament expected to bring a surge of international travelers to Mexico City, Guadalajara and Monterrey. In light of the shooting, travel and safety experts urged caution.

Travel advisory guidance issued by safety analysts and diplomatic sources recommends that nonessential travel to Mexico be postponed until investigations conclude and authorities provide updated security guidance. Travelers who must visit Mexico in the coming weeks were advised to register with their embassies, avoid crowded tourist sites where access to elevated vantage points is unrestricted, and follow instructions from local security personnel.

Local tourism officials said they were coordinating with federal security forces to review protective measures at major sites and to reassure visitors and residents. The shooting has already prompted some tour operators to suspend visits to Teotihuacan temporarily while authorities assess and strengthen on-site security.

As investigations continue, the attack has underscored the vulnerability of open cultural sites to sudden acts of violence and has intensified scrutiny of public-safety preparations ahead of one of the world’s largest sporting events.