More than 400 additional Texas National Guard troops arrived at the Texas-Mexico border on Monday. Texas Gov. Greg Abbott deployed the troops to the Rio Grande Valley, where he said they'll work side-by-side with U.

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

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

The state has vowed to assist the president in his efforts to revamp immigration. But the state’s biggest cities and school districts are more reluctant to help.

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 security operations to locate and arrest criminal illegal foreign nationals living in Texas.

According to reports, there were no injuries in the incident near Fronton Island, an uninhabited island in Starr County, Texas.

On Monday, Texas DPS Lieutenant Olivarez confirmed that shots were fired from inside Mexico toward a group of Border Patrol agents on Fronton Island. According to a CBP statement, at approximately 1:29 p.m., border patrol agents reported shots fired in Fronton, Texas.

Gov. Abbott deployed 400 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.

Hours after being sworn in, President Trump fulfilled his campaign promises to crackdown on illegal immigration. The President declared an emergency at the southern border, and as a result, there have already been many changes to policy.

The stakes are particularly high for Texas and other border states, where trade with Mexico is worth hundreds of billions of dollars a year.

An illegal immigrant wanted in Mexico for allegedly raping a child was repatriated back to his country after entering the U.S. four times illegally since 2002.