To curtail the violence that was underway, the USPP, following established policy, issued three warnings over a loudspeaker to alert demonstrators on H Street to evacuate the area. Horse mounted patrol, Civil Disturbance Units and additional personnel were used to clear the area. As many of the protestors became more combative, continued to throw projectiles, and attempted to grab officers’ weapons, officers then employed the use of smoke canisters and pepper balls. No tear gas was used by USPP officers or other assisting law enforcement partners to close the area at Lafayette Park. Subsequently, the fence was installed.