Protesters violently beat by plainclothes and undercover officers / Police opened fire without warning
In the evening, members of the public gathered outside Mongkok Police Station again. Just before 9pm, Police Tactical Unit (PTU) officers suddenly rushed out of police station to subdue a number of masked people. Men carrying retractable batons, in black clothing and some wearing masks who identified themselves as police officers took part in the operation, striking with batons those who tried to run away and shouting at those present, including reporters, to make them stand back. They did not, however, show their warrant cards nor respond to reporters who wanted to confirm their identity and asked for their warrant cards as police officers. Sources said at least one was taken away. During the process, a reporter was hit with a retractable baton, dropping the cell phone. Dozens of PTU officers then appeared to disperse those present. The men in black did not show their warrant cards during the arrest. When asked by reporters if they were police officers and if they could show their warrant cards, some replied, “None of your business,” pushed reporters away and threatened them with batons.
At about 9pm, the police hoisted a blue flag (warning crowds of the use of force) at the police station, after which PTU officers fired a bean bag round at the outside from within. Only then was an orange flag (warning crowds of opening fire) displayed. PTU officers were at the scene at a time, during which an officer left behind his warrant card which attracted a crowd of civilians. The police later returned to get it back.
A black-clad citizen was pinned against the wall and at least one person was later taken into the police station, after which officers returned to the station.