 Complete the following phrase:  After 1 July 2019, protests spread to different areas in Hong Kong such as Sheung Shui, Sha Tin and Tsim Sha Tsui. CHRF held another anti-extradition protest on 21 July on Hong Kong Island. Instead of dispersing, protesters headed for the Liaison Office in Sai Ying Pun, where they defaced the Chinese national emblem. While a standoff between the protesters and the police occurred on Hong Kong Island, groups of white-clad individuals, suspected triad members, appeared and 