U.S. Border Patrol agents have found a suspected drug tunnel with lighting and a rail-car system that connected to a home across the border in Tijuana, Mexico.
Immigration and Customs Enforcement spokeswoman Lauren Mack said agents patrolling west of the San Ysidro port of entry Tuesday morning found a sinkhole close to the U.S. border fence that opened up into the tunnel.
Mack says the tunnel was about 220 yards in length, had a cart inside and the walls shored up. But it was still under construction.
Macks says no drugs were found, and no arrests have been made.
Another tunnel was discovered Monday. The 230-foot tunnel went from Mexicali, Mexico and came out of the All-American Canal bank east of Calexico.
Drug cartels have increasingly turned to tunnels to smuggle their loads into the United States. More than 75 tunnels have been discovered along the border since 2008.
