Some of the more than 10,000 people marching in Sha Tin called for genuinely democratic voting in the former British colony. A handful called for an independent Hong Kong. Protests that began in opposition to a proposed extradition law have swelled to include complaints about an influx of mainland Chinese into Hong Kong and that local leaders are more responsive to the Beijing government than to the territory’s people.

On Sunday, protesters demanded an investigation into complaints police assaulted participants in earlier demonstrations against the extradition law. Some carried signs reading “Police Are Liars.” Other signs read “Defend Hong Kong.” They were watched by hundreds of police officers wearing helmets and carrying clubs and shields. Some protesters wore surgical masks as protection against possible police use of pepper spray or tear gas.