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.
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The longest such tunnel was 2,400 feet long, found in 2006 in the same area as this latest discovery.