The Immigration and Customs Enforcement agency confirmed the “targeted enforcement operation” at a worksite in Newark, which is a sanctuary city.

The Thursday morning raid took place in Newark, New Jersey and saw three people taken into custody by immigration officials. The owner of the business that was raided said he's never seen anything lik

Immigration and Customs Enforcement (ICE) agents raided a Newark, New Jersey, business venue on Thursday and detained undocumented immigrants as well as U.S. citizens without warrants, the city's mayor said.

After a raid at a business in Newark, reportedly without a warrant, here's what to know about ICE and immigration enforcement in America.

Newark Mayor Ras J. Baraka issued a statement late Thursday afternoon denouncing the raid as an “egregious act” conducted without a warrant and in violation of the Fourth Amendment of the U.S. Constitution, which guarantees “the right of the people be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures.”

Newark Mayor Ras Baraka confirmed in a statement that the federal Immigration and Customs Enforcement raided a business establishment in the city.

ICE said it conducted a 'targeted enforcement operation at a worksite' in Newark but did not disclose details. The owner of a restaurant said three of his workers were taken into custody.

Newark Mayor Ras Baraka called the ICE raid an 'egregious act is in plain violation of the Fourth Amendment of the U.S. Constitution.'

Immigration and Customs Enforcement agents appear to have stepped up their detention of unauthorized immigrants, taking more than 500 people into custody on Thursday, almost twice the average number of daily arrests late last year.

A New Jersey mayor says his city has been “unlawfully terrorized” after federal agents detained multiple people Thursday during what Immigration and Customs Enforcement called “a targeted enforcement operation.

A Princeton sociologist said since the U.S. didn't welcome those fleeing Cold War–era regimes, "churches [and] synagogues declared themselves to be a sanctuary to refugees."

U.S. Rep. LaMonica McIver, D-10th District, said her office had asked agency officials for answers. “Already, Trump’s attacks on immigrant communities are hitting home, and we will not back down,” she said.