Secret tunnel for drugs discovered between Tijuana and San Diego

Tijuana – 06/02/2026: Mexican security authorities have discovered a tunnel nearly 600 meters long under the border with the United States, apparently used for drug trafficking. The tunnel connects the Mexican border city of Tijuana with San Diego in the state of California. This discovery was made as part of thorough investigations against organized crime, which has been a central problem in the region for years.

The tunnel extends several meters underground and is technically complex. The access on the Mexican side was hidden and likely equipped with modern devices allowing discrete use. On the American side, signs were also found suggesting use by smugglers. Investigators suspect the tunnel was mainly used for the transport of cocaine, methamphetamines, and other illegal substances.

The border between Mexico and the United States is one of the busiest and at the same time most challenging to control in the world. The case highlights the challenge of ensuring border security against increasingly sophisticated smuggling methods. Cooperation between American and Mexican authorities is crucial to discovering and shutting down these illegal routes. In addition to police actions, both sides focus on a combination of prevention, criminal prosecution, and international cooperation.

This tunnel is part of a series of underground passages used by criminal cartels to evade border controls. Such tunnels are often equipped with advanced technologies and are constantly maintained to allow the transport of large quantities of drugs and other contraband goods. Authorities are verifying whether the tunnel also contains other cargo or people.

Alongside the discovery, authorities in Tijuana and San Diego are intensifying inspections and information exchange to better penetrate the vast smuggling networks. Experts emphasize that, beyond immediate repression, long-term development measures in the border region are necessary to sustainably reduce drug trafficking.

The discovery of the tunnel was welcomed by government representatives from both countries as a success of cross-border cooperation. However, the security situation remains tense, as the cartels continue to adapt their strategies. Further investigations aim to clarify which network is behind the tunnel and how to definitively dismantle the criminal structures.

Overall, the tunnel once again highlights the persistence of the drug trafficking problem at the Mexico-US border. Despite intense efforts from both governments, the fight against illegal activities remains a lasting and complex issue. The current discovery underlines the urgency of coordinated measures to ensure security and the rule of law in the region in the long term.