Student protests over the Israel-Hamas war have popped up on an increasing number of U.S. college campuses following last week’s arrest of more than 100 demonstrators at Columbia University. The students are calling for universities to separate themselves from any companies that are advancing Israel’s military efforts in Gaza — and in some cases from Israel itself. Protests on many campuses have been orchestrated by coalitions of student groups. The groups largely act independently, though students say they’re inspired by peers at other universities.

Students protesting the Israel-Hamas war are digging in at Columbia University for a 10th day, part of a number of demonstrations roiling campuses from California to Massachusetts. Hundreds have been arrested across the nation, sometimes amid scuffles with police. In New York, Columbia is negotiating with student protesters who have rebuffed police and doubled down. Other schools have been quick to call law enforcement to douse demonstrations before they can take hold. Columbia officials have said they will seek other options if the negotiations with protesters fail.