Twenty-five people were arrested Saturday for trespassing at the University of Virginia after police clashed with pro-Palestinian protesters who refused to remove tents from campus, and demonstrators at the University of Michigan chanted anti-war messages and waved flags during commencement ceremonies.

In Virginia, student demonstrators began their protest on a lawn outside the school chapel Tuesday. On Saturday, video from WVAW-TV showed police wearing heavy gear and holding shields lined up on the campus in Charlottesville. Protesters chanted “Free Palestine,” and university police said on the social platform X that an “unlawful assembly” had been declared in the area.

As police moved in, students were pushed to the ground, pulled by their arms and sprayed with a chemical irritant, Laura Goldblatt, an assistant professor of English and global studies who has been helping student demonstrators, told The Washington Post.