The masked individual accused of throwing concrete blocks at federal agents during the intense anti-ICE protests in Los Angeles has been captured — apprehended at the border by one of the agents he assaulted, as reported by authorities.

Elpidio Reyna — who was put on the FBI’s wanted list over last month’s chaos — was busted Wednesday at the US-Mexico border.

“He was detained by a US Border Patrol officer who was inside one of the vehicles that were damaged during the assault — a courageous law enforcement officer who narrowly escaped fatal harm in last month’s perilous and reckless incident,” stated US Attorney Bill Essayli.

The 39-year-old Compton man was allegedly caught on camera brazenly throwing the blocks at FBI vehicles as they drove by him in Paramount on June 8.

Reyna had initially fled to Mexico after authorities blasted out images of him to track him down, authorities said.

He was detained by Mexican authorities in the state of Sinaloa earlier this month but later agreed to surrender to the FBI.

Reyna was taken into custody at the San Ysidro Port of Entry on a felony charge of assault on a federal officer, authorities said.

“To anyone believing they can attack federal officers while concealed behind a mask or helmet, Reyna’s arrest today demonstrates that we have the ability to locate and charge anyone in violation of federal law,” Essayli remarked.

Attorney General Pamela Bondi hailed his arrest, saying, “You can run, but you can not hide. If you attack a law enforcement officer, we’ll find you.”