Three protesters were arrested Thursday afternoon outside Hunter College in Manhattan during a demonstration involving more than 150 people.
Black-clad students and sympathizers were objecting to recent budget cuts and showing solidarity with students in California protesting a 33 percent increase in tuition there.
Students also walked out of classes at the New School and New York University.
At Hunter, on Lexington Avenue and 68th Street on the Upper East Side, about 60 protesters rushed the seven-floor main building in a failed attempt to occupy it.
A 20-year-old woman and a 21-year-old man were arrested by security officers at the college and charged with trespass, criminal mischief and possession of graffiti instruments (marking pens). A 37-year-old man was charged with disorderly conduct.