A large number of people dressed in white in Yuen Long used violent indiscriminate attacks on anti‑extradition bill protesters and citizens, and the police were accused of responding slowly and failing to intervene in time.
On the evening of July 21, 2019, large groups of men dressed in white and armed with weapons attacked protesters, journalists and residents inside and around Hong Kong's Yuen Long MTR station, and the police were accused of colluding with the triads.
Li Jiyi, head of the New Territories Work Department of the Chinese Liaison Office, spoke at the inauguration ceremony of the Shiba Xiang Township Committee, urging Yuen Long residents to maintain social stability and not allowing demonstrators to enter Yuen Long to cause trouble.
In July 2019, Caixin reported that the Office of the Leading Group for the Special Rectification of Internet Financial Risks recommended that the police open an investigation into Sun Yuchen over suspected illegal fundraising, money laundering, pornography- and gambling-related issues.
After learning that Taiwan President Tsai Ing-wen would visit New York, Sun Wen promptly reported to Chinese consular officials and, on various pretexts, refused and obstructed formal exchanges and activities with the Taiwanese side.