In the early hours of Monday local time, hundreds of people rushed into downtown Chicago to burn and clashed violently with police, killing at least two people, injuring 13 police officers and arresting more than 100 people. The mayor of Chicago said it was purely criminal and there was no excuse. It is understood that the commotion was related to a shooting incident on Sunday afternoon. Authorities said a man opened fire on Sunday afternoon when he was being pursued by police and was later shot and injured by police. The event was played up by multiple accounts on social media, causing social hatred again, which led to the early morning riots. The local police department has cancelled all previous vacations, and the city government will temporarily restrict citizens from entering the city center between 8:00 p.m. and 6:00 a.m.