Hang Seng Index briefly slips below 23,000 as Alibaba leads tech sell-off

The Hang Seng Index briefly fell below 23,000 for the first time in a year as technology stocks led a decline, with Alibaba Group Holding dropping 4.2%. The index reached a low of 22,992.62 but later traded at 23,024.69, while the mainland's CSI 300 Index rose 1.56%.