A Hong Kong resident was sentenced to three months in prison on sedition charges for wearing a T-shirt that read "Free Hong Kong - the revolution of our time".
Chu Kai-pong (26) pleaded guilty to two charges.
Authorities said today that Chu had flags with similar inscriptions, which were used during pro-democracy protests in 2019.
He was arrested at Hong Kong airport in November when he was spotted wearing a T-shirt with the slogan.
In 2020, the Hong Kong government banned protest slogans, stating that anyone using them could be prosecuted for inciting the area's secession from China, which is a serious offence.
During his sentencing, the chief judge said Chu knowingly broke the law because he bought the items in Taiwan.
Hundreds of activists have been arrested since 2020, when the national security law came into force in Hong Kong.
Human rights activists claim that the law, imposed by the Chinese government, stifles dissidents and reduces civil liberties.
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