Footage from Tuesday (March 31) shows Hong Kong riot police line five bystanders against a wall on Portland Street in Mong Kok.<br /><br />According to local media, hecklers yelled slogans such as "Hak Ging" meaning "black police." <br /><br />Protesters are marking the seven month anniversary of the August 31, 2019 Prince Edward station incident in which Hong Kong police allegedly indiscriminately attacked passengers during their arrests.
