Several rounds of tear gas were fired as officers marched towards Wan Chai. Most protesters had already retreated from the main road.
The street was plunged into a cloud of tear gas.
Riot police in Wong Tai Sin have also fired tear gas to disperse a crowd pointing laser pens at officers on a footbridge. Protesters retreated several metres away. The part of Lung Cheung Road in the area remained closed after protesters blocked the road with barricades