SAN DIEGO (CBS 8) - Authorities discovered a suspected drug tunnel across the border in Tijuana.
The unfinished tunnel was discovered Friday under a warehouse near the Otay Border Crossing. It did not cross into the U.S., but authorities described it as sophisticated with a rail system. Human rights activists say the construction is similar to other tunnels linked to drug cartels.
The warehouse had been used as an import-export appliance business.