The U.S. government is asking people to avoid traveling to certain areas of the Texas-Mexico border due to security concerns.

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.

The troops, part of a unit called the Texas Tactical Border Force, will join those already deployed to the border through Texas' Operation Lone Star.

Texas Governor Abbott mobilizes the Tactical Border Force to reinforce security along the Texas-Mexico border in collaboration with federal authorities.

Eye on Politics breaks down some of the biggest political stories grabbing headlines in North Texas and beyond.

Texas Gov. Greg Abbott said the additional troops will work alongside federal border agents amid the Trump administration's crackdown on immigrants.

Gov. Greg Abbott on Monday said he's sending more than 400 soldiers from Houston and Fort Worth to the U.S.-Mexico border to collaborate with Border Patrol agents, according to new reporting from the Texas Tribune.

U.S. Sen. John Cornyn is backing Gov. Greg Abbott's request for Congress to repay Texas for the billions the state has spent on border security.

Texas Gov. Greg Abbott is sending aircraft, helicopters and 400 specially trained National Guard soldiers to assist the Border Patrol.

Democratic State Rep. Trey Martinez Fischer tells Jack Fink he opposes Gov. Abbott's deployment of 400 more Texas troops to the border.  He says Abbott should work with federal authorities and put the money to use elsewhere.