Mexico has discovered a 230-meter drug-smuggling tunnel under the border between the Mexican state of Sonora and the US state of Arizona.
The smuggling tunnel, which was 1.3 meters in height and reached a depth of almost 18 meters, ran from San Luis Rio Colorado in the northern Mexico state of Sonora to the US state of Arizona, the Mexican army said in a statement issued on Monday.
The tunnel had electricity, ventilation, and small carts to facilitate the transportation of drugs.
Despite tightened security along the border between the US and Mexico, tunnels are still the most popular way for Mexico's cartels to smuggle drugs and people into the United States. In recent years, about 80 smuggling tunnels have been discovered along the border.
Mexico is struggling to end the country’s drug war, which has claimed the lives of 55,000 people since President Felipe Calderon launched a crackdown on drug cartels in 2006.
About two months ago, the bodies of 43 men and six women, some of them mutilated, were found in plastic bags on a highway connecting the northern metropolis of Monterrey to the US border.