The actions of police officers and counterprotesters at campus demonstrations came under further scrutiny on Tuesday, with the University of California system saying it would investigate the law enforcement response to a violent attack on pro-Palestinian protesters at its Los Angeles campus, while the White House condemned the taunting of a Black student captured in a video at the University of Mississippi.

The developments came hours after police officers removed a pro-Palestinian encampment at the University of Chicago, an institution that has long been considered a model for free expression on campus. Demonstrators at U.S. campuses were galvanized Tuesday by an Israeli military incursion into Gaza’s southern end, thwarting administrators’ hopes of minimizing disruptions ahead of commencement events.

Videos taken last week captured a group of white male counterprotesters at the University of Mississippi taunting and jeering at a Black female student. One man appeared to hoot and make monkey gestures at her. “The behavior captured in that video is undignified, and it’s just racist, period,” said Karine Jean-Pierre, the first Black woman to serve as White House press secretary, during a press briefing on Tuesday.