The Hang Seng Index fell 0.60 percent, or 144.64 points, to 23,779.90.
The benchmark Shanghai Composite Index tumbled 1.04 percent, or 33.14 points, to 3,163.57 and the Shenzhen Composite Index, which tracks stocks on China's second exchange, fell 1.30 percent, or 25.29 points, to 1,921.13.