Hong Kong football fans booed the Chinese national anthem and held signs opposing government plans to allow extraditions to the mainland at a home match against Taiwan on Tuesday night.
The fan protest came as the international hub is rocked once more by huge anti-government protests with record marches over the weekend and demonstrators seizing major highways on Wednesday morning.
The latest protests have been sparked by a proposal to allow criminals to be rendered to China for the first time.
Many are fearful the proposed law will drag people into the mainland's opaque courts in politically motivated trials and hammer Hong Kong's reputation as an international business hub.
Footage posted on social media from Hong Kong's 0-2 defeat by Taiwan on Tuesday night showed fans booing loudly as China's