The report says the incident forms part of a broader protection plan covering team bases, stadiums and fan zones across Mexico. Unauthorised drones have reportedly also been detected near tournament sites in Mexico City, Guadalajara and Monterrey.
The operation, known as Plan Kukulkán, brings together federal forces and local police. Its stated focus includes early-warning systems, stadium security, airports, roads and hotels used by teams and supporters.
A training centre is one of the few places where a national team can prepare away from the stadium spotlight. A drone over the site could expose tactical work, create a distraction or force a change to the session, even if no physical threat is established.
For South Korea, the immediate priority remains preparation for the opener. Coaches will want the squad focused on game planning rather than access restrictions, airspace alerts or changes to the team’s daily routine.
The episode also underlines how modern tournament security extends beyond match venues. Teams now require protected travel routes, controlled training environments and rapid responses to devices that can gather images or disrupt operations.
The report says further drones have been neutralized around security zones, although it provides no confirmed detail on the devices, their operators or the exact timing of each incident. That leaves the wider picture unclear, but the response shows how seriously authorities are treating airspace around the competition.
The next major test will come when South Korea and Mexico meet in their World Cup opener. Until then, the tournament’s security teams will be under pressure to keep preparations calm, controlled and out of the headlines.