The officer fired three shots on Monday morning toward two black-clad protesters in a neighbourhood where traffic had been snarled by roadblocks, video footage from the scene shows. One of the protesters crumpled to the ground after being shot at point-blank range, and appeared conscious afterward. It is unclear what took place in the minutes before the footage of the confrontation emerged.
The footage was broadcast live on Facebook from the Sai Wan Ho neighbourhood by Cupid Producer, which describes itself as a production house based in Hong Kong.
The shooting on Monday comes as pro-democracy activists in Hong Kong blocked roads and scuffled with riot police officers across the city as part of what had been billed as a citywide general strike.