HONG KONG—Hong Kong police fired tear gas to try to break up anti-government protests in the densely populated Kowloon district of Mong Kok on Oct. 31, as masked demonstrators gathered to join Halloween fancy-dress clubbers on the main island of Hong Kong.
Protesters, many dressed all in black and wearing now-banned face masks, knelt in the road and took cover behind umbrellas, angry at a violent police crackdown on unrest there two months ago. Many shone lasers at police as others built barricades in the road with rubbish bins and other debris.
