US police find 'major drug tunnel' under Mexico border
17 November 2011 Last updated at 11:19 GMT
US officials say they have uncovered a major drug-smuggling tunnel under the border with Mexico and seized an estimated 14 tons of marijuana.
Customs officials said the tunnel linked warehouses in Tijuana, Mexico, and San Diego's Otay Mesa area, in California.
Dozens of such tunnels have been found in recent years as US police have cracked down on overland smuggling.