CHICAGO (AP) — Police began dismantling a pro-Palestinian encampment early Thursday at DePaul University in Chicago, hours after the school’s president told students to leave the area or face arrest.

Officers and workers in yellow vests cleared out tents and camping equipment at the student encampment, leaving behind yellow squares of dead or dying grass where the tents had stood. Front-loaders were being used to remove the camping equipment.

Just across the street from where the encampment was spread across a grassy expanse of DePaul’s campus known as “The Quad,” a few dozen protesters stood along a sidewalk in front of a service station, clapping their hands in unison as an apparent protest leader paced back and forth before them, speaking into a bullhorn.

All of the protesters at the encampment “voluntarily left” the area when police arrived early Thursday, said Jon Hein, chief of patrol for the Chicago Police Department.