Hong Kong stocks extended the week's losses on Friday on worries over fresh US rate hikes, though traders were cheered by a report that China was nearing the end of a probe into Alibaba's fintech affiliate Ant Group.

The Hang Seng Index sank 0.9 percent, or 167 points, to 18,365.

The Shanghai Composite Index fell 0.3 percent, or 8 points, to 3,196, while the Shenzhen Composite Index slipped 0.7 percent, or 13 points, to 2,030. (AFP)