On 21 September 2021, clashes broke out between police officers and demonstrators who had gathered for a second consecutive day in Melbourne, the state capital of Victoria, to denounce the ongoing coronavirus-related lockdown and mandatory COVID-19 vaccines in the construction industry. During the demonstration, participants threw rocks, bottles and other projectiles at police officers, who deployed pepper balls and rubber bullets to disperse the crowd. Footage from the scene showed a group of individuals vandalizing police cars amid a heavy presence of riot police. Protesters also temporarily halted vehicular traffic on the busy West Gate Freeway. At least three police officers were injured in the violence, and authorities arrested more than 60 people. Approximately 2,000 people, mostly construction workers, rallied in the central business district for about eight hours, a day after the state government ordered the closure of all construction sites in Melbourne and surrounding areas — which are currently subject to lockdown measures — for the next 14 days. Victoria state officials require all construction sites to comply with health regulations before resuming operations on 5 October; workers are furious about the mandate to have had at least one dose of COVID-19 vaccine before returning to their jobs.