HONG KONG—A Hong Kong court on Thursday sentenced seven men to between 3.5 and 7 years in prison for their role in a 2019 attack on pro-democracy protesters, reporters, and bystanders at a train station. The July 21 attack in the northern Yuen Long district by more than 100 people wearing white T-shirts and wielding sticks and poles was one of the most violent scenes of the 2019 unrest. The attack sparked criticism of police for what democracy activists called a sluggish response, with some accusing them of colluding with gangsters suspected of carrying out the attack. Police have rejected those accusations, blaming the slow response partly on protests elsewhere draining resources. Wong Ying-kit, Ng Wai-nam, Tang Ying-bun, Choi Lap-ki and Tang Wai-sum were found guilty of rioting as well as wounding with intent or conspiracy to wound with intent and sentenced to up to 7 years, the maximum penalty …