USA06 October, 20262 min read
U.S. Coast Guard Returns Fire After Gunfire From Mexican Border Near Garceno, Texas
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Coast Guard exchanged gunfire with shooters on the Mexican side near Garceno, Texas. Hundreds of U.S. and Mexican troops deployed to the Rio Grande Valley after the incident.

Coast Guard exchange near Garceno
The U.S. Coast Guard said its members “encountered gunfire” from the Mexican border during interdiction operations with federal authorities near Garceno, Texas, on Sept. 26, and the Coast Guard returned fire.
The Washington Post described the U.S. and Mexico deploying hundreds of troops to the border area after the Coast Guard encounter, with the U.S. repositioning forces to the Rio Grande Valley.

Mexico asked the United States for evidence of a cross-border shooting that allegedly targeted U.S. security personnel, and Claudia Sheinbaum said the U.S. reported “shots from the Mexican border”.
The dispute unfolded as the Coast Guard said it was investigating the Sept. 26 incident alongside federal partners, while U.S. officials framed the encounter as impetus for moving hundreds of additional troops into the Rio Grande Valley.
Mexico demands proof, U.S. coordinates
Claudia Sheinbaum told reporters, “We asked for all the evidence because we have no evidence,” and she said Mexico’s National Guard, Army and Navy had not detected any shots being fired from Mexican territory toward the U.S.
Ronald Johnson wrote on X that the targets were members of the U.S. Coast Guard and said the threat would be “swiftly addressed,” while the U.S. Embassy in Mexico helped coordinate with Mexican forces deploying to the border area.

The Washington Post said the U.S. and Mexico deployed hundreds of troops to a border area where U.S. officials said the Coast Guard came under fire and returned it.
Al Jazeera reported that Sheinbaum confirmed the Mexican deployment was designed “to forestall any issues” that may arise, as Mexico and the United States increased their military presence around the Texas-Tamaulipas border.
Troop buildup and what is at risk
The U.S. military said it deployed hundreds of troops and their equipment to the Rio Grande Valley as part of planned preparations to address “historically observed seasonal increases in attempted illegal activity,” and it cited the Sept. 26 Coast Guard encounter as an example of that uptick.
The Coast Guard said it would focus on approximately 260 miles of the Rio Grande along the U.S.-Mexico border, and it framed its work as a “layered, integrated approach” to secure and defend the border.
Mexico deployed 500 Army and National Guard personnel to its side of the border in Tamaulipas, and the operation included two UH-60 helicopters, drones, and mobile and semi-fixed anti-drone equipment.
The dispute over who fired first remained unresolved as Mexico said it had no evidence of shots from Mexican territory, while the Coast Guard said it was investigating the incident alongside federal partners.