Hundreds of protestors (pictured) covered their faces as they marched on Martin Place on Friday night to demonstrate against police violence in Hong Kong. As one activist said, a number of protesters wished to keep their identities hidden over fears for repercussions back in China. 'If they share our faces on Wechat (China's Facebook) we could be in danger,' a protester said. The demonstration comes as pro-Hong Kong activists continue to clash against police in more than two months of protests. The rallies were initially held to protest against legislation that proposed to extradite citizens from Hong Kong to China.