While the troops secured the major intersections and bridges, the police abandoned their usual arrest procedures, roaming through the city making sweep arrests and using tear gas. They detained anyone who looked like a demonstrator. By 8 am thousands of people had been arrested, including many who had not been breaking any law. The city's prisons did not have the capacity to handle that many people thus several emergency detention centers were setup including the Washington Coliseum and another one surrounded by an fence was set up next to RFK Stadium. The prisoners massed against the fence, pushed it over, and were tear-gassed. No food, water, or sanitary facilities were made available by authorities but sympathetic local residents brought supplies. Skirmishes between protesters and police occurred up until about mid-day. In Georgetown, the police herded the protesters and onlookers through the streets to the Georgetown University campus. The police then engaged in a back and forth with the protesters outside the university's main gate on O Street, lobbing tear gas over the gate each time they pushed the crowd back. Other forms of gas were used including pepper based and one that induced vomiting. Police helicopters also dropped tear gas on the university's lower athletic field where protesters had camped the night before. Numerous people were injured and treated by volunteers on campus. By afternoon the police had suppressed the protest and held more than 7,000 prisoners.