Yuma Sector Border Patrol teamed up with agents from Homeland Security Investigations (HSI) to disrupt a tunnel operation into southwestern Arizona.
Federal agents with Border Patrol and HSI received information about a possible sinkhole or tunnel at the international border located west of the San Luis Port of Entry on Monday.
The agents responded to the area to investigate, according to information provided by Yuma Sector Border Patrol officials.
Yuma Sector Border Patrol officials reported this is the sixth tunnel discovered in their area of responsibility.
During the investigation of the Mexican side of the tunnel, located in San Luis, Rio Colorado, Sonora, officials discovered an aluminum ladder within the hole.