The Portland Police Bureau announced seven additional arrests were made Thursday evening amid ongoing protests at Portland State University.

The seven arrests came a couple of hours after PPB announced 22 people had been arrested on Thursday, bringing the total to 29 people arrested on Thursday.

PPB said the seven arrests were from "trespassers" breaking "back into the library" by pulling the fence down.

"Arrests have also been made for people refusing to leave the park block at the library," the bureau said in an update on X late Thursday evening.

The Portland Police Bureau said 22 arrests have been made amid the ongoing protests at Portland State University.

"PPB has arrested a total of 22 people during the events on the PSU campus," the bureau said in an update on X Thursday.

Earlier in the day, Oregon Gov. Tina Kotek released a statement condemning vandalism reported at the PSU Library.

“I fully condemn the criminal actions taken Thursday morning that resulted in the burning of 15 Portland Police Bureau cars, endangering first responders and the surrounding community," Kotek said, adding, "This includes the acts of vandalism seen this week at the Portland State University library and against nearby businesses."

The protest at Rutgers University over the Israel-Hamas war ended peacefully, the university chancellor said in a statement Thursday afternoon.

"We are pleased to report that these students have agreed to peacefully end their protest," Chancellor Francine Conway, Ph.D. said.

The deadline for students to leave the Voorhees Mall encampment was 4:00 p.m. local time.

Conway noted that the protesters' request for the university to "divest from companies engaged in Israel and to sever ties with Tel Aviv University" falls outside of the administration’s scope, however, the "divestment request is under review."

At least 209 people were arrested at UCLA after protesters resisted orders to disperse early Thursday, the LA sheriff's department has confirmed. Another 300 protesters voluntarily left campus, according to UCLA.

"Several days of violent clashes between demonstrators and counter-demonstrators put too many Bruins in harm’s way and created an environment that was completely unsafe for learning," UCLA Chancellor Gene D. Block said in a statement.

"Over the past several days, we communicated with and made a formal request to meet with demonstration leaders to discuss options for a peaceful and voluntary disbanding of the encampment. Unfortunately, that meeting did not lead to an agreement," UCLA said.

Block said the last week has been among the most painful periods the UCLA community has ever experienced.

"We will also continue to investigate the violent incidents of the past several days, especially Tuesday night’s horrific attack by a mob of instigators. When physical violence broke out that night, leadership immediately directed our UCPD police chief to call for the support of outside law enforcement, medical teams and the fire department to help us quell the violence. We are carefully examining our security processes that night and I am grateful to President Drake for also calling for an investigation," Block said.

UCLA officials issued an evacuation order for all protesters in the area of Royce Quad, saying the encampment was "unlawful."

Smoke billowed around law enforcement officials as they began breaking through the barricades on the campus encampment. It was not immediately clear whether the smoke had been dispersed by the police or the protesters.

The encampment in Dickson Plaza, along with all unauthorized tents and structures, had been declared "unlawful," campus public safety officials said in an alert.

"The University requires that everyone must leave the encampment and adjacent areas, as well as all unauthorized structures and tents immediately, until further notice," the alert said.

-ABC News’ Amanda Morris and Kevin Shalvey