In a joint effort between Mexican and U. S. law enforcement agencies a 900-foot tunnel was found connecting Tijuana, Mexico to Otay Mesa, California. Officials said that one of the Mexican drug cartels was most likely responsible and had paid upwards of $1 million USD to construct the tunnel.

The tunnel started inside a warehouse in a bathroom which had its false floor held up by a hydraulic jack. From there the tunnel went 100 feet underground and efforts were made to dampen the sound of the drilling. The tunnel was equipped with electricity, lights, landline phones and ventilation.

Law enforcement officers detected the tunnel before the rest of it was built and it emerged in Otay Mesa. Officials estimate the tunnel started three years ago and was near completion. They also estimate that it was to be used for trafficking drugs and weapons and not people.