Drug dealers are serious about getting their product from Mexico into the United States. U.S. border police have found a sophisticated tunnel linking Tijuana and Southern California.
The U.S. Customs and Border Protection agency said the tunnel was six football fields long, equipped with a rail system, lighting and ventilation.
Agents also recovered more than 20 tons of marijuana during a search of the tunnel early Wednesday, the border patrol said in a news release.
Mexican drug cartels have dug dozens of tunnels under the Mexican border with California and Arizona in recent years to help beat increased security at the borders.
The longest such tunnel was 2,400 feet long, found in 2006 in the same area as this latest discovery.