New Jersey Democrats and immigration activists vowed to fight against President Donald Trump’s immigration policies after eight people were detained Thursday in an ICE raid in Newark.

Newark Mayor Ras Baraka, members of Congress, state officials and migrant activists on Friday spoke at a news conference, where the mayor claimed U.S. Immigration and Customs Enforcement (ICE) acted without a warrant and detained workers, including a U.S. military veteran.

“The problem with this is that none of these people were rapists, or murderers or criminals,” Baraka said. “The problem with it is that ICE went in there without a warrant.” 

The mayor also said that Newark must remain a sanctuary city for migrants.

A worker stands in the parking area of the Ocean Seafood Depot, where several workers were arrested.  (Kena Betancur/AFP via Getty Images)

“Raids and attacks like what we witnessed in Newark yesterday does nothing to make people feel safer,” McIver said. “People should not have to fear that going to church or school will result in their arrest or deportation. Parents who have babies in our country should not be told that their child who is born here is not a citizen. That goes against our Constitution.” 

The mayor and other officials who spoke said they will fight against Trump’s policies as the president carries out what he has called the largest “mass deportations” in U.S. history. 

Asked if he is afraid of prosecution for refusing to cooperate, Baraka said he is not. 

“If [Trump] thinks that we’re just going to go to jail quietly, he’s got another thing coming,” the mayor said.