Mexican police reveal tunnels were built near prison in Reynosa

The Tamaulipas Department of Public Safety announced on July 12, 2017 they discovered an unfinished tunnel near a prison in Reynosa. Keep clicking to explore tunnels that were built to transport drugs. The Tamaulipas Department of Public Safety announced on July 12, 2017 they discovered an unfinished tunnel near a prison in Reynosa. Keep clicking to explore tunnels that were built to transport drugs. Photo: The Tamaulipas Department Of Public Safety Photo: The Tamaulipas Department Of Public Safety Image 1 of / 75 Caption Close Mexican police reveal tunnels were built near prison in Reynosa 1 / 75 Back to Gallery

Police in Mexico found an unfinished tunnel near a prison at the Mexico-Texas border.

According to the Tamaulipas Department of Public Security, the 984-foot tunnel was near the back of the Reynosa Sanctions Execution Center (Cedes).

HATING JAIL: El Chapo reportedly despises solitary confinement

Tunnels in, and out, of prison near the U.S.-Mexico border are nothing new. Jaoquin "El Chapo" Guzman has escaped from prison twice, once on July 11, 2015 through a tunnel underneath Mexico's Puene Grande prison.

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Authorities did not reveal who built the tunnel or what it was built for.

El Chapo has been extradited to the United States and hasn't escaped for some time. After he was captured the second time, there were still false rumors that he escaped again.

Click through the slideshow above to see more tunnels that have been discovered by authorities.