Massive Underground Tunnel Discovered Near U.S.-Mexico Border

Authorities discovered a tunnel near the Tijuana-San Diego border, sparking an investigation.

The nearly 1,000-foot-long tunnel is believed to be used for smuggling drugs and explosives into the United States.

Mexican federal authorities found the tunnel in the Nueva Tijuana neighborhood during a raid, with support from the Mexican Navy.

The tunnel reportedly led to Otay Mesa, California.

Watch below:

ALERT: Nearly 1000-foot-long tunnel uncovered is believed to be used for smuggling explosives and drugs into the US.

Mexican authorities and the Mexican Navy conducted a search warrant in Nuevo Tijuana for “violations of the Federal Law on Firearms and Explosives and the… pic.twitter.com/6JgAfnE6im

— E X X ➠A L E R T S (@ExxAlerts) June 1, 2026

NBC 7 San Diego shared further:

During their search, officials seized four cartridges, three cell phones, bank cards, a DVR device, and 24 doses of methamphetamine, among other items, the Mexican Navy said.

While searching the property authorities found