MEXICO CITY (CBSDFW.COM/AP) — Shootouts with Mexican soldiers and police near the U.S. border left 9 suspected gunmen dead on September 16.

The government of the northern border state of Coahuila said state police officers came under fire while patrolling a dirt road southwest of the border city of Nuevo Laredo.

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Members of the Mexican federal Police patrol along the bank of the Rio Bravo, natural border between Eagle Pass, Texas and Piedras Negras, Coahuila state, Mexico. (credit: Julio Cesar Aguilar/AFP via Getty Images)

The state said that soldiers were called in for reinforcement and that they pursued and killed the attackers following a confrontation.

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Of the two vehicles found at the scene, one was a truck fitted with homemade steel-plate armor. Such trucks, known as “monsters,” are often used by drug gangs in the region.

The state government said 10 weapons were found at the scene, including a .50-caliber sniper rifle.

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