Are the tunnels beneath Guadalajara big enough to travel via horseback? Yes, but that's not what they were built for.

Mexican National Guard officials found what they described as a "suspicious underground structure" leading to the banks of ...

The tunnels are built and used to smuggle drugs, weapons, people and other illicit contraband, authorities have found.

Mexico border, a hidden battle is taking shape. Smugglers are now moving underground, using tunnels and sewer lines.

Yuma Sector Border Patrol and Homeland security said they found a cross-border tunnel near Yuma, Ariz. Authorities say the tunnel was found at an abandoned Kentucky Fried Chicken located in San Luis, ...

EL PASO, Texas (Border Report) – Portions of an illegal border tunnel discovered on Jan. 9 between El Paso and Juarez, Mexico, remain unfilled due to engineering challenges posed by the Rio Grande. On ...

Border patrol agents discovered an underground tunnel connecting a residence in Tijuana to the San Diego area, which authorities said was being built to smuggle narcotics across the border undetected.

Where there’s a will, there’s a way, and that saying certainly rings true for resourceful drug smugglers. One of the most effective and difficult to detect methods of moving illegal drugs across the U ...

Texas is taking action to ensure Mexican cartels are not building tunnels beneath the southern border into the United States on state land.

Officials found more than a ton of cocaine and 14,000 pounds of marijuana. — -- A ton of cocaine and seven tons of marijuana were seized from a cross-border tunnel that stretched from a Tijuana, ...