The protesters are being subjected to the assaults rather than being the masked assailants.
My gut reaction is these attackers are from mainland China and who have been organised by an official in order to try and reduce HK's tendency to protest (a sentiment echoed in that article as well).
My gut reaction is these attackers are from mainland China and who have been organised by an official in order to try and reduce HK's tendency to protest (a sentiment echoed in that article as well).