FBI searching for man who allegedly hurled rocks at Paramount protest: 'Turn yourself in'

As protests against immigration raids grip the Los Angeles area, the FBI is searching for a man who allegedly hurled rocks at federal vehicles.

Authorities said they've identified the suspect as 40-year-old Compton resident Elpidio Reyna, who is considered a fugitive by the FBI.

Reyna was allegedly seen on video throwing rocks at law enforcement vehicles during protests in the south LA city of Paramount on Saturday afternoon, injuring a federal officer and damaging government cars, the FBI said.

"Turn yourself in," FBI Deputy Director Dan Bongino tweeted Tuesday. "It’s only a matter of time."

The FBI said it's offering a reward up to $50,000 for information leading to Reyna's arrest and conviction. Anyone with information is asked to call 1-800-CALL-FBI.

Meanwhile, the Trump administration has dispatched 700 Marines to LA and increased the California National Guard presence to 4,000, despite California Gov. Gavin Newsom's objections.

ABC News' Tristan Maglunog contributed to this report.