On 21 April 2020, police officers clashed with protesters throughout the department of Hauts-de-Seine outside of Paris for a fourth consecutive night. Protesters set fire to garbage bins and shot fireworks at police officers in the neighborhoods of Aulnay-sous-Bois, Clichy-la-Garenne, Montreuil, Nanterre and Villeneuve-la-Garenne. Additionally, protesters set fire to a school in the Gennevilliers neighborhood. Police officers fired tear gas to disperse the protests throughout the night and arrested at least nine people. Demonstrations have been ongoing since 20 April, when a resident crashed a motorcycle into the door of an unmarked police car. Protesters allege that police officers deliberately caused the crash and have used extreme tactics to enforce lockdown measures intended to combat the spread of COVID-19.