The narrow tunnel spans more than 800 yards but could be even longer because its route zigzags.

The opening on the U.S. side was discovered in a lot full of wood scraps in San Diego. Officials say the tunnel started in a home in Tijuana and had a fully functioning elevator leading into it.

The tunnel entrance on the San Diego side was just a small hole in the ground that was covered with a large dumpster.

Officials say tunnels are being used more and more to ferry drugs into the U.S. This discovery comes the same week border patrol agents found a much smaller tunnel that crossed the California-Mexico border.

This video includes images from the U.S. Attorney's Office.

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Austin Walters died from an overdose in 2021 after taking a Xanax pill laced with fentanyl, his father said. A new law named after Austin and aimed at preventing deaths from fentanyl has resulted in its first convictions in Georgia, prosecutors said. (Family photo)

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