An MTR Corp. light rail train travels through a street in the Yuen Long district of the New Territories in Hong Hong, China, on Tuesday, July 23, 2019. A rally of more than 100,000 people in Hong Kong devolved into a night of violence on Sunday, with police firing tear gas after protesters gathered in front of China's liaison office in the city and defaced the national emblem. Masked men wearing white shirts and wielding batons, some suspected to be linked to triads, later attacked people in a metro station and mall in the mainland border town of Yuen Long. Photographer: Paul Yeung/Bloomberg via Getty Images
