More than 100 people were arrested on Monday following a night of looting and unrest in Chacago. The clashes left 13 officers injured and caused damage in the city's upscale shopping district, authorities said. Police said it "was not an organized protest" but instead "an incident of pure criminality" that began following the shooting of a person by police the previous day. Images showed storefronts bashed in and people fleeing stores with goods. Reports said that shots were fired at police and officers returned fire. Chicago mayor Lori Lightfoot described the looting as "straight up, felony criminal conduct and an assault on the city."