Local law enforcement officials have arrived on the University of California Irvine campus after being called to assist campus police, officials said.

Local law enforcement officials have arrived on the University of California Irvine campus after being called to assist campus police, officials said.

Campus officers are joined by city of Irvine police at the pro-Palestinian protest in the school’s physical sciences plaza, according to university spokesperson Tom Vasich.

The Orange County Sheriff was asked to send additional personnel to assist, department Sgt. Matthew Parrish told CNN.

Vasich estimates there are about 100 protesters in the area, including some not affiliated with the university. About 10 tents have been erected in violation of university policy, he said. The sheriff’s department was called in for support only, he added.

Irvine Mayor Farrah Khan issued a statement “preemptively condemning” any police action that might violate the First Amendment rights of the protesters.

I am asking our law enforcement to stand down. I will not tolerate any violations to our students’ rights to peacefully assemble and protest,” said Khan.