Unfinished smuggling tunnel found in Nogales, Ariz.

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Unfinished smuggling tunnel found March 1 in Nogales, Ariz. By Jennifer Thomas Unfinished smuggling tunnel found March 1 in Nogales, Ariz. By Jennifer Thomas

TUCSON, Ariz. -- U.S. Border Patrol agents and Mexican law enforcement officers discovered an unfinished smuggling tunnel this week in Nogales, Ariz.

It was discovered west of the DeConcini Port of Entry during a tunnel sweep along the International Boundary fence on Tuesday.

The sweep was part of a recent series of proactive searches for illicit tunnels to deny smugglers underground access to the United States.

During inspection, Border Patrol agents observed the tunnel was still under construction and did not have an exit.

The incomplete tunnel originated in Mexico and extended approximately 18 feet into the United States. It measured approximately 2 feet wide by 3 feet tall.

According to a news release from U.S. Customs and Border Protection, the Border Patrol continues to cooperate with Mexican authorities and share up-to-date information on smuggling trends. The bi-national collaboration assists the Border Patrol in denying, degrading, disrupting, and dismantling smuggling organizations.