Video surfaced online Saturday showing an officer at a California university calmly pepper-spraying a line of several sitting protesters, who flinch and cover their faces but remain passive with their arms interlocked as onlookers shriek and scream out for the officer to stop.
The chancellor of the University of California, Davis described the video images as "chilling" and said she was forming a task force to investigate even as a faculty group called for her resignation because of the incident Friday.
"The use of the pepper spray as shown on the video is chilling to us all and raises many questions about how best to handle situations like this," Chancellor Linda Katehi said in a message posted on the school's web site on Saturday.
The protest was held in support of the overall Occupy Wall Street movement and in solidarity with protesters at the University of California, Berkeley, who were jabbed by police with batons on Nov. 9.
The UC Davis video images, which were circulated on YouTube and widely online, prompted immediate outrage among faculty and students, with the Davis Faculty Association saying in a letter Saturday that Katehi should resign.
"The Chancellor's role is to enable open and free inquiry, not to suppress it," the faculty association said in its letter.
At a news conference later on Saturday, Katehi said what the video shows is "sad and really very inappropriate." The events surrounding the protest have been hard on her personally, but she had no plans to resign, she said.
"I do not think that I have violated the policies of the institution. I have worked personally very hard to make this campus a safe campus for all," she said.
Images of police evictions have served to galvanize support during the Occupy Wall Street movement, from the clash between protesters and police in Oakland last month that left an Iraq War veteran with serious injuries to more recent skirmishes in New York City, San Diego, Denver and Portland, Ore.
The forcible Oakland protest eviction, the first of its kind on a large scale, marred the national reputation of the city's mayor and police department while rallying encampments nationwide beset with their own public safety and sanitation issues.
Police chiefs and mayors held conference calls to discuss containment strategies in the days after the Oct. 25 Oakland eviction. The use of rubber bullets and tear gas dropped off, though police departments have turned to pepper spray when trying to quell large crowds.
Some of the most notorious instances went viral online, including the use of pepper spray on an 84-year-old activist in Seattle and a group of women in New York. Seattle's mayor apologized to the activist, and the
New York Police Department official shown using pepper spray on the group of women lost 10 vacation days after an internal review.
In the video of UC Davis protest, the officer, a member of the UC Davis police force, displays a bottle before spraying its contents on the seated protesters in a sweeping motion while walking back and forth. Most of the protesters have their heads down, but at least one is hit in the face.
Some members of a crowd gathered at the scene scream and cry out. The crowd then chants, "Shame on You," as the protesters on the ground are led away. The officers retreat minutes later with helmets on and batons drawn.
Ten people were arrested.
University spokeswoman Karen Nikos said nine people hit by pepper spray were treated at the scene. Another two were taken to hospitals and later released.
Nikos declined to release the identity of the officer in the video.
At Saturday's news conference, UC Davis Police Chief Annette Spicuzza said the decision to use pepper spray was made at the scene.
"The students had encircled the officers," she said. "They needed to exit. They were looking to leave but were unable to get out."
"Stomach churning video of police using pepper spray on seated anti-Wall Street protesters in Davis, Calif.," actress and model Mia Farrow wrote in a retweet of the video.
Elsewhere in California on Saturday, San Francisco public works crews removed tents at two Occupy sites in the city.
The San Francisco Chronicle reports (http://bit.ly/ui5yIa ) that the workers moved in on the encampments in Justin Herman Plaza and in front of the Federal Reserve Bank, removing dozens of tents on grassy areas.
There were no reports of violence, according to San Francisco police spokesman Albie Esparza. He said the action was not a raid.
Police were present but did not become involved.
In Oakland, anti-Wall Street protesters gathered for a rally and march, and vowed to set up tents at a downtown Oakland park, setting the stage for a possible confrontation with authorities.