On the 70th anniversary of the founding of the People's Republic of China, Hong Kong protesters marked a national day of mourning. In defiance of a police ban on the annual march that the Civil Human Rights Front (CHRF) applied for, four veteran democrats led a rally from Causeway Bay to Central, mourning the victims of Chinese Communist Party rule and calling for the end of one-party rule in mainland China. Simultaneously, protesters held rallies in Wong Tai Sin, Tuen Mun, Tsuen Wan, Sha Tin and Sham Shui Po, which drew tens of thousands of participants altogether. The protests were initially peaceful, but violent incidents occurred later during the day. MTR stations and businesses that were thought to be associated with the mainland were vandalized. Officers had fired multiple warning shots in locations such as Yau Ma Tei and Wong Tai Sin. In Tsuen Wan, a police officer fired a live round at Tsang Chi-kin, an 18-year-old male secondary school student, to his chest at point blank range with a revolver. This incident happened as the man was assaulting the police officer who ran in to retrieve a fellow officer chased and beaten to the ground by a crowd of protesters. Before being shot, the student was holding a white pipe and a kickboard; when collecting evidence after the shooting, the police took away his mask, his helmet, his kickboard along with a metal rod found from nearby, but without his white pipe. It was the first live round fired at a person by the Hong Kong police in this series of protests. The protester was taken to the emergency room of Princess Margaret Hospital and in critical condition. The Hong Kong Police called the shooting heartbreaking and added that [t]he police officers' lives were seriously threatened. To save his own and his colleagues' lives, [the officer] fired a live shot at the attacker. The Foreign Secretary of the United Kingdom Dominic Raab said in a statement that the use of live ammunition is disproportionate. Human rights organization Amnesty International urged the Hong Kong authorities to urgently review their approach in policing the protests to de-escalate the situation and prevent more lives being put at risk and reiterated its call for an independent investigation. Away from the city's protest scenes, the profane phrase Celebrate His Mom (「賀佢老母」) showed up in the form of a massive, black vertical protest banner on Devil's Peak. At the same time, Hong Kong citizens crowdfunded to buy whole-page newspaper advertisements on over nine newspapers in different countries to showcase this phrase globally. The countries included South Korea, Spain, Sweden, Norway, United Kingdom, Germany, Canada, Argentina, and Mexico.