When the protesters refused to retreat, a high-pitched siren blared from a police Swat truck and several canisters of teargas were fired towards the crowd in quick succession. "Return to your vehicles, return to your homes," the police Tannoy said. Yet protesters regrouped, linked arms and continued to chant at the police, some screaming obscenities.
At 9.08pm, a barrage of gas canisters and flashbangs were shot at the crowds, prompting chaos. Many protesters ran south down Lang Drive. But, even as they fled, the police line continued to fire gas canisters and crackers in their direction. No one could be seen throwing anything at the officers.