Via Bloomie:
Hong Kong authorities deployed more aggressive tactics during the 10th straight weekend of anti-China protests, with riot police videotaped beating demonstrators in subway stations and officers going undercover to infiltrate the group and make arrests.
The violent scenes emerged as protesters used flash mobs across the city, surrounding police stations, disrupting traffic, and hurling projectiles including bricks and petrol bombs. One officer was taken to the hospital after suffering burns in the upmarket shopping district of Tsim Sha Tsui. Mob violence broke out elsewhere.