Coast Guard returns fire after gunfire from Mexico near Garceno, Texas

Coast Guard Forces Rio Grande personnel encountered gunfire from the Mexican side of the border near the town of Garceno, Texas, on Sept. 26, 2026, and returned fire, with no injuries or damage reported.

The exchange highlights an uptick in cross‑border violence that U.S. officials say is fueling a rapid buildup of troops and assets on both sides of the Rio Grande, underscoring growing concerns about illicit migration and cartel activity in the region.

Coast Guard members were conducting joint interdiction operations with federal partners to interdict migrants when the first shots were fired from Mexican territory. After the initial discharge, Coast Guard personnel responded with return fire, according to a statement from the service.

“On Sept. 26, Coast Guard Forces Rio Grande personnel encountered gunfire from the Mexican border in the vicinity of Garceno, Texas while conducting joint interdiction operations with federal partners on the Rio Grande. Coast Guard personnel returned fire. No injuries to Coast Guard, or other personnel were reported, and no damage to Coast Guard assets or equipment was reported,” the Coast Guard said.

U.S. Ambassador to Mexico Ronald Johnson said the U.S. Embassy is helping coordinate with Mexican forces deployed to the area and emphasized a shared commitment to secure both sides of the border.

“Mexican military commanders will communicate directly with deployed U.S. forces. Together, we intend to patrol both sides of our shared border, protect our communities, and make it more difficult for criminal and terrorist organizations to operate,” Johnson said.

The incident is being used as a concrete example of the seasonal surge in illegal activity that prompted the Pentagon to reposition hundreds of troops and equipment to the Rio Grande Valley in early October. The same surge led to the deployment of roughly 500 Mexican Army and National Guard personnel to the Tamaulipas side of the border.

Since the launch of Operation River Wall in October 2025, the Coast Guard has added boats, shallow‑water craft, command‑and‑control assets and tactical teams to patrol roughly 260 miles of the river. Admiral Kevin E. Lunday, acting commandant, described the operation as the “best in the world” for riverine interdiction, aimed at disrupting smuggling routes that have long been exploited by criminal networks.

Border crossing data show a dramatic decline in illegal entries, dropping from more than 46,000 in August 2023 to about 2,100 in August 2026, according to Customs and Border Protection. Officials say the recent shooting underscores that, despite the decline, the threat environment remains volatile.

The Coast Guard and its federal partners have opened an investigation into the Garceno incident, and officials say they will continue to monitor and adjust force posture as needed to safeguard the border and the communities that depend on it.