Mexican authorities found a camp site Tuesday on a border island where suspected cartel members shot at U.S. border patrol agents in Texas.

The U.S. State Department recently issued its highest-level security alert for several cities in Mexico just across the Texas border. They warn of an increase in violent crime, kidnapping, and improvised explosive devices (IEDs).

Texas Gov. Greg Abbott deployed the troops to the Rio Grande Valley, where he said they'll work side-by-side with U.S. Border Patrol agents to keep migrants from illegally entering the country. Some of those troops left from the U.S. Naval Air Station Joint Reserve Base in Fort Worth Monday morning. The others left from a base in Houston.

In the fight against the fentanyl crisis, Texas law enforcement has seized more than 622 million lethal doses of fentanyl, a release from Greg Abbott's office said.

The warning was issued because of "increasingly frequent gun battles" and the discovery of "improvised explosive devices (IEDs)."

Officials conducted exercises with Black Hawk and Chinook helicopters, and military trucks, highlighting tactical strength.

Gov. Greg Abbott on Tuesday directed the Texas Department of Public Safety to deploy tactical strike teams to support the Trump administration’s border security and homeland

Governor Greg Abbott is deploying the new Texas Tactical Border Force to the Rio Grande Valley to coordinate with the U.S. Border Patrol under Trump’s administration to secure the border.

Trump's Justice Dept. may drop the U.S. challenge to SB 4, but other plaintiffs have vowed to push forward against Texas' immigration law.

Most Texans say there should be away to allow immigrants without legal authorization to remain in the U.S. if they meet certain conditions: poll.

A video released by the Texas Department of Public Safety (DPS) shows a group of men running for cover after illegal activity is halted.