Cities like Chicago, Illinois, are calling in their state’s National Guard units Sunday after a night of violence that saw at least three people killed, thousands arrested, and countless businesses left in shambles.

Protests took place across the country Saturday, sparked by a video showing the death of George Floyd, an unarmed black man who was arrested by Minneapolis police. At least four officers have been fired and one, who knelt on Floyd’s neck for more than eight minutes, even though Floyd was not resisting, has been charged with Floyd’s murder.