Protesters riot for third night in U.S. city of St. Louis

A young man holds up a placard outside the police headquarters in St. Louis, Missouri, the United States, Sept. 17, 2017. Protesters smashed windows and other property in downtown St. Louis, Missouri Sunday night. Riots in the city bordering Missouri and Illinois have entered a third night over the acquittal of St. Louis police officer Jason Stockley, who is accused of killing Anthony Lamar Smith, a 24-year-old black man, in 2011. (Xinhua/Dane Iwata)