STORY: "They are sending in the riot police and basically creating a riot in an otherwise peaceful demonstration. So this is just shameful," Stein said in a statement.

In the past two weeks, pro-Palestinian protests have spread to college campuses across the U.S., triggered by the mass arrest of over 100 people at Columbia University more than a week ago.

Since then, hundreds of protesters from California and Texas to Atlanta and Boston have been arrested as they emulated the encampments used by Columbia students to call attention to the humanitarian crisis in Gaza.

Protesters are demanding a ceasefire in the war with Hamas and the divestment of university assets in companies involved with the Israeli military, and an end to U.S. military assistance to Israel.