Mexican Officials Find Secret Passageway They Believe Was Being Constructed to Smuggle Illegal Immigrants Into the U.S.

Mexican soldiers have discovered the start of a secret underground tunnel they believe was being built as a passageway into the U.S. But it isn’t just any tunnel: This one begins in a closet inside a house near Tijuana, Mexico, where a ladder dives 66 feet underground into the passageway that spans 500 feet in length.

Mexican officials said Tuesday that the path was still being constructed when it was discovered and that it didn’t reach the U.S. border. However, officials believe had they not made the discovery when they did the tunnel would have eventually come out in California, about 22 miles from San Diego, the Daily Mail reported.

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