University of California, Berkeley student Magaly Mercado holds a protest sign as attendees leave a speech by conservative commentator Ann Coulter on Wednesday, Nov. 20, 2019, in Berkeley, Calif. Hundreds of demonstrators gathered on campus as Coulter delivered a talk titled

BERKELEY, Calif. (AP) — A person was injured, and five people were arrested during a demonstration by hundreds of protesters outside a University of California, Berkeley auditorium where conservative commentator Ann Coulter gave a speech, an official said Thursday.

Between 1,500 and 2,000 demonstrators chanted slogans outside the event, where police put up a large water-filled barricade. Some demonstrators harassed people trying to enter the building, yelling at them and pushing them.

Coulter tweeted “THANK YOU” on Thursday to the campus and city police who protected the venue.

A person who had a ticket to the event was injured after scuffling with a protester and taken to a hospital as a precautionary measure, said Dan Mogulof, a university spokesman.

“We don’t believe the injuries were serious,” he said.

UC Berkeley police arrested four people for not following officers’ orders and one for battery on an officer. Three are students of the university, Mogulof said.

Police said one of the two non-students was wearing a mask.

A woman in the audience who began yelling during Coulter’s Wednesday night speech titled “Adiós, America!” was handcuffed by security and taken out of the event, KPIX-TV reported. It wasn’t clear if the woman was one of the five who was arrested.

A scheduled appearance by Coulter didn't take place in 2017 in the wake of violence before a scheduled talk by another right-wing speaker, Milo Yiannopoulos, when dozens of black-clad anarchists appeared among the crowd and attacked people. They later vandalized businesses near the campus.

A lawsuit accused the university of discriminating against conservative speakers. UC Berkeley has called the lawsuit’s accusation unsubstantiated.

A man pushed by protesters is surrounded as he falls to the ground while leaving a speech by conservative commentator Ann Coulter at the University of California, Berkeley, Wednesday, Nov. 20, 2019, in Berkeley, Calif. Hundreds of demonstrators gathered as Coulter delivered a speech titled
A man leaving a speech by conservative commentator Ann Coulter falls to the ground after being pushed by protesters at the University of California, Berkeley, Wednesday, Nov. 20, 2019, in Berkeley, Calif. Hundreds of demonstrators gathered as Coulter delivered a talk titled
Protesters confront a man leaving a speech by conservative commentator Ann Coulter at the University of California, Berkeley,  Wednesday, Nov. 20, 2019, in Berkeley, Calif. Hundreds of demonstrators gathered as Coulter delivered a talk titled
Police officers guard attendees leaving a speech by conservative commentator Ann Coulter on Wednesday, Nov. 20, 2019, in Berkeley, Calif. Hundreds of demonstrators gathered on campus as Coulter delivered a talk titled
Protesters yell at audience members leaving a speech by conservative commentator Ann Coulter on Wednesday, Nov. 20, 2019, in Berkeley, Calif. Hundreds of demonstrators gathered on campus as Coulter delivered a talk titled
University of California, Berkeley student Magaly Mercado joins protesters outside a speech by conservative commentator Ann Coulter on Wednesday, Nov. 20, 2019, in Berkeley, Calif. Hundreds of demonstrators gathered on campus as Coulter delivered a talk titled
FILE - In this Oct. 20, 2018 file photo, Ann Coulter participates in a panel at Politicon in Los Angeles. Police arrested at least seven people and one person was injured during a protest at the University of California, Berkeley against a speech by conservative commentator Ann Coulter . KPIX-TV reports a protester who disrupted Coulter's Wednesday, Nov. 20, 2019, speech inside a University of California, Berkeley auditorium was handcuffed and taken out of the event. (Photo by Willy Sanjuan/Invision/AP, File)