U.S. Border Patrol agents reportedly came under fire this week while working on the southern border from gunmen operating inside Mexico.

Fox News correspondent Griff Jenkins said that U.S. Customs and Border Protection (CBP) confirmed the Wednesday incident to the network.

The shots fired at Border Patrol agents from the Mexican side happened in the Ysleta area of the El Paso Sector, Jenkins posted on X. The incident, which did not yield any casualties, happened in the afternoon.

Federal law enforcement officials launched an investigation into the matter and described the incident as a “use of force” incident, meaning that Border Patrol agents returned fire.

“On May 8, 2024, Border Patrol agents assigned to the El Paso Sector were involved in a use of force incident while responding to reports of shots fired near the border in the Ysleta Station area of responsibility in Texas,” the statement said. “There are no reported injuries at this time. The incident is under review by Customs and Border Protection’s Office of Professional Responsibility.”

BREAKING: CBP confirms to FOX News…

Shots were fired from the Mexican side at Border Patrol agents in the Ysleta area of the El Paso sector yesterday afternoon.

Fortunately, no agents were injured and there is an investigation underway. CBP calls it a “use of force” incident…

— Griff Jenkins (@GriffJenkins) May 10, 2024

The incident comes as the southern border has experienced catastrophic levels of illegal immigration because of President Joe Biden’s policies and reversal of former President Donald Trump’s immigration policies.

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In addition to more than 8 million illegal aliens coming into the U.S. under Biden, a number greater than the population of most U.S. states, numerous suspects on the FBI’s terrorist watchlist have also entered the country.

Related: ICE Nabs Illegal Alien Afghan Terror Suspect Who Was Released Into U.S. By Biden Admin