The authorities deployed tear gas and wielded batons as protesters resisted calls to disperse. Ms. Sherrill made the decision to send in state troopers on horseback and on foot, a tactic that has been sharply criticized by immigrant rights leaders. And the city of Newark temporarily imposed a curfew on the streets nearest Delaney Hall.

As clashes between law enforcement and protesters have brought nationwide attention to the Delaney Hall immigration facility in Newark, New Jersey, the city threatened Tuesday to expand its lawsuit against the private company that operates the detention center unless city officials are allowed to inspect it.

New Jersey Gov. Mikie Sherrill has sent state police to establish designated protest zones and vehicle checkpoints outside an immigration detention center in Newark.

Protesters have demonstrated at Delaney Hall in Newark, New Jersey, for more than a week, frequently clashing with Immigration and Customs Enforcement agents and seeking to block vehicles that might be transporting detainees amid an

Police in Newark, N.J., arrested multiple people over the weekend for breaching a curfew around Delaney Hall, an Immigration and Customs Enforcement detention center that has been the site of violent clashes between protesters and federal officers over the past week.