Sophisticated Drug Tunnel Found Between San Diego And Mexico

A major underground drug tunnel has been discovered by drug enforcement agents in Southern California, connecting San Diego and Tijuana, Mexico.

The passageway is equipped with electricity, ventilation and a rail system.

A similar operation was shut down in 2010 and about 30 tons of marijuana were confiscated in that bust.

Officials say this tunnel had not been put into service yet.

Click here to watch a video of the agents in the tunnel.