As Beijing grows wary of pro-independence groups seeking to forge closer ties in Hong Kong and Taiwan, activists say they are coming under increased surveillance and harassment from pro-China media outlets and unofficial "operatives."
Visits to Taiwan in January by several Hong Kong activists including Tony Chung generated heavy coverage by two pro-China newspapers, including detailed reports of their movements and meetings.
The coverage prompted Taiwan to investigate the activities of the Hong Kong-based Wen Wei Po and Ta Kung Pao newspapers on "national security" grounds.