Coast Guard Returns Fire on US-Mexico Border as Hundreds of Troops Pour Into Rio Grande Valley
Texas Gov. Greg Abbott would not confirm it was cartel related, only saying, "That is what I've heard."
Reports & sources
Military.com
Coast Guard Returns Fire on US-Mexico Border as Hundreds of Troops Pour Into Rio Grande Valley (opens Military.com)Military.com's feed description
Latin Times
Coast Guard Firefight Triggers 1,000-Troop Surge on Both Sides of the Rio Grande (opens Latin Times)Latin Times's feed description