NEWARK, N.J. (AP) — New Jersey state police set up designated protest zones and vehicle checkpoints outside an immigration detention center in Newark on Friday, relieving federal immigration enforcement agents who have been clashing with protesters for days.

Gov. Mikie Sherrill said she sent in state police to bring order outside Delaney Hall as the demonstrations have intensified, with violence and arrests increasing as night falls.

“It has grown unsafe, and that’s completely unacceptable,” the Democratic governor said at a news conference announcing the new measures. “We need to take this opportunity to lower the temperature.”

As police erected protest barriers, U.S. Immigration and Customs Enforcement agents who had formed an line in front of protesters moved inside the building’s perimeter fence.

New Jersey State Police Lt. Col. David Sierotowicz said ICE officers agreed to stand down with state police assuming responsibility.

Demonstrators had mixed reactions. Some staged a sit-in and refused to move into one of the new protest areas police set up using metal barriers and concrete blocks.

Rachel Cohen worried that demonstrators exercising their First Amendment rights were being silenced.

“It is not helpful to quell protest for the sake of a false peace,” she said. “There is no peace while we are torturing our neighbors on government dime inside this facility.”

U.S. Homeland Security Secretary Markwayne Mullin, on social media, called the measures a “win for law and order" and noted that Sherrill had resisted sending state police for days.

The protests began a week earlier after immigrant advocates said detainees inside launched a hunger strike over poor living conditions at the 1,000-bed facility, which opened last May.

Demonstrators have been attempting to block people and vehicles from entering and exiting, linking their arms in a human chain and using trash cans, umbrellas and other items as makeshift shields and barricades.

ICE officers wearing helmets and tactical vests have used pepper spray and batons to try to disperse the protesters and clear the roadway for vehicles.

At least six demonstrators were arrested for allegedly assaulting law enforcement officers Wednesday night, and more have been arrested on other nights, according to DHS.

Acting U.S. Attorney General Todd Blanche shared images online Friday of bloody wounds and bruises sustained by ICE officers.

“These riots are clearly not ‘peaceful protests’ as you can see from the photos of these horrific wounds,” he said. “Assault a federal officer, you’ll be held accountable.”

Another demonstrator, Lisa O’Dwyer, said she was fine with the designated protest areas.

“I like to get my point across and stay safe at the same time,” the Westfield resident said.

Eyesha Marable, pastor at Mt. Zion AME Church in Millburn, agreed even while acknowledging that there were “different schools of thought” among protesters.

“There are people here who are angry. Their family members are inside. Their friends are inside. People have been taken off the streets, out of their communities,” she said.

“We have to keep the peace,” Marable said. “The goal is to get our people free, to get them liberated, and we cannot do that if we’re fighting out here.”

State Attorney General Jennifer Davenport said it was important to “de-escalate” the situation as “violence, either against protesters or by protesters, is unacceptable.”

Sherril said she did not want to give ICE a “pretext” to expand operations in the state.

“We all need to do everything we can to cool things down now,” she said.

The governor and other Democratic officials tried to visit detainees on Monday but were denied entry.

Democratic members of Congress from New York City, however, were able to tour Delaney Hall the day after that. They reported dire conditions, with detainees being fed small portions of often spoiled food and their varied medical needs going ignored.

Families and supporters of detainees also say their loved ones have also been subjected to pepper spray and physical force in retaliation for their hunger strike and the protests outside.

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Marcelo reported from New York.