A retired FBI agent reveals how organized anarchist groups are hijacking peaceful anti-ICE demonstrations using sophisticated tactics to provoke confrontations with law enforcement.

According to authorities, Joel Enrique Sandoval-Lopez and Joan Sebastian Castaneda-Lozada have been found and arrested.

Three people were arrested late Saturday and early Sunday after Portland police declared a riot near the U.S. Immigration and Customs Enforcement building.

"Migration ... has turned once idyllic towns into scenes of Third World Dystopia." President Donald Trump said in a social media post directing ICE agents to step up deportations.

Two of four men who broke out of an immigration jail in Newark have been recaptured, authorities said Sunday. Joel Enrique Sandoval-Lopez and Joan Sebastian Castaneda-Lozada were both caught within 72 hours of escaping, the FBI said. Sandoval-Lopez was nabbed Saturday in Passaic, sources told WNBC.

The FBI is searching for a suspect accused of assaulting a federal officer and damaging government property during the anti-ICE demonstrations in Los Angeles.

ICE and federal law enforcement announced the arrest of a series of immigrants on charges including assault and battery and selling illegal firearms.

The suspect injured an officer when he hurled rocks at law enforcement vehicles on Saturday afternoon on Alondra Boulevard in Paramount, according to the FBI.