U.S. authorities discovered the longest smuggling tunnel ever found along the southwest border. The tunnel originates in Tijuana, Mexico, near the Otay Mesa Port of Entry and extends a total of 4,309 feet long -- more than three-quarters of a mile. The next longest tunnel in the U.S., discovered in San Diego in 2014, was 2,966 feet long. An offshoot of the main tunnel was discovered at around 3,500 feet into the U.S. It led agents back to the main tunnel where they discovered several hundred sandbags blocking the suspected former exit of the tunnel.

Source: Fox News January 30, 2020 00:11 UTC