Longest Drug Smuggling Tunnel Discovered in San Diego, CA

A drug-smuggling tunnel has been discovered by federal agents in San Diego, California. The tunnel stretches over three-quarters of a mile, making it the longest ever found along the Southwest border.

According to the agent's report, The 4,309-foot tunnel begins in Tijuana, Mexico, just about 250 feet south of the border. It continues to travel underground into San Diego County, California.

It is equipped with air ventilation, electricity, and extensive rail, and cart system, and even an elevator at each entrance, announced the US Customs and Border Protection in a press conference Wednesday.

"The sophistication of this tunnel demonstrates the determination and monetary resources of the cartels," Drug Enforcement Administration's Special Agent in Charge John W. Callery said in a statement Wednesday. Although the cartels will continue to use their resources to try and breach our border, the DEA and our partners on the Tunnel Task Force will continue to use our resources to ensure they fail. With the goal that our border is secure, and that tunnels like this are sealed down to stem the flow of deadly drugs entering the United States."

The newly discovered gateway, found by CBP and its combined forces following a multiyear investigation, lays 70 feet underground and is about 5 feet, 5 inches tall, and two feet wide.

However, the discovery has not yet led to any arrests or seizures, although agents will maintain their investigation, reported to CBP Deputy Chief Patrol Agent Aaron Heitke.

"I am confident that our hard work and dedication to upholding the law will lead to future arrests and seizures," Heitke said in a statement. As of now, no arrests have been made in connection with the tunnel.

In 2014, the longest tunnel was also discovered in San Diego was 3,259 feet long.