Mexico's Ministry of National Defence announced the discovery of a drug-smuggling tunnel leading from Mexico into Arizona, the latest illicit passageway found under the border in recent years.
The tunnel, which was about 755 feet (230m) in length, ran from San Luis Rio Colorado, in the Mexican state of Sonora, to a yet-unopened business in San Luis, Arizona.
The tunnel was just over four feet (1.2m) tall and included electrical lights, ventilation and small carts used to push narcotics over the border.
It remains unclear which drug trafficking organisation was responsible for the tunnel's construction.
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Contains video from Reuters
