A lengthy illicit tunnel connecting the Mexican city of Tijuana to San Diego in the United States was unearthed by authorities along with seizure of 2.3 tons of marijuana, the Mexican attorney general said on Monday.
The 1847-foot (563-meter) long passage was found after agents of the attorney general requested a search warrant to inspect a suspicious property. Mexico did not say when it was uncovered.
US and Mexican authorities have discovered several underground tunnels used to smuggle drugs, and in some cases migrants.
Last April US officials uncovered what they believe to be the longest ever cross-border drug trafficking tunnel connecting Mexico and California.
The narrow 2,600-foot tunnel connected a house in Tijuana, Mexico, to a commercial lot in Otay Mesa, California, where the exit is a three-foot diameter hole that, at one point, was hidden from view by a trash can.