Security officers in Hong Kong removed a university student who tried to display the Tibetan flag during the Olympic equestrian competition Saturday. Seated in the front row, the student, Christina Chan, displayed a placard bearing the Canadian flag and the Tibetan flag underneath during the dressage portion of the eventing competition at a stadium in Hong Kong's Sha Tin district. When she tried to peel away the Canadian flag to reveal the Tibetan flag, four or five security officers covered her with a blue cloth and asked her to leave but she refused. Officers carried her out of the venue about half an hour later. Police spokesman T.K. Ng said Chan - who also protested at the Hong Kong leg of the Olympic torch relay in May - was removed from the venue but not arrested.