Authorities Discover Tunnel Between San Diego And Mexico

SAN DIEGO (AP) - Federal authorities say they've discovered a tunnel between Mexico and San Diego - possibly one of the secret passages drug cartels have dug to move dope into the United States.

U.S. Immigration and Customs Enforcement officials announced the discovery of the tunnel on Thursday.

Thy aren't releasing any details. However, such cross-border tunnels have been linked in the past to drug smuggling.

Mexican authorities tells KSWB-TV an investigation is underway in the Aeropuerto neighborhood west of Tijuana International Airport and near the Otay Mesa neighborhood of San Diego.

In April, authorities found a half-mile-long tunnel between the two cities and seized tons of cocaine and marijuana.

It was the 13th secret passage found along California's border with Mexico since 2006.

Copyright 2016 The Associated Press.