Police in Hong Kong have detained several pro-democracy activists on the anniversary of the Tiananmen Square massacre.
Authorities have banned public commemoration of the 1989 incident, which saw China crush peaceful protests in Beijing with tanks and troops.
However, candlelight vigils have been taking place in other cities worldwide.
Among those detained was 67-year-old Alexandra Wong, a prominent campaigner nicknamed “Grandma Wong”.
Amid a tense evening in Hong Kong, she was arrested while carrying flowers near Victoria Park, where vigils had been held for decades.
The leader of one of Hong Kong’s main opposition parties was among those arrested. Chan Po Ying, a veteran pro-democracy activist who heads the League of Social Democrats party, was holding an LED candle and two flowers.
Mak Yin Ting, former head of the Hong Kong Journalists Association, was also detained and subsequently released. Police later said they had made one arrest and taken 23 people to police stations for investigation.
The UN High Commissioner on Human Rights, Volker Turk, said on Twitter that he was alarmed by the detentions and called for the release of “anyone detained for exercising freedom of expression and peaceful assembly”.
Events to mark the 1989 massacre in Beijing are banned in mainland China.
For decades, Hong Kong was the only Chinese city where these commemorations were allowed, under the city’s semi-autonomous economic, political and legal set up – known as “one country, two systems” – established when the city handed over to China by the UK in 1997.
But public events to mark the anniversary have since been outlawed, after the Chinese government imposed a strict national security law outlawing many forms of dissent in 2020.
The annual commemorations have not been held since 2019, after being initially banned under Hong Kong’s Covid regulations.
This year, a pro-Beijing carnival is being held in Victoria Park instead.
Ms Wong was quickly surrounded by police and driven away on Sunday in the city’s Causeway Bay area.
Nearby Victoria Park has hosted annual candlelit vigils to mark Tiananmen Square since 1990, often drawing tens of thousands of people to mark the day, known as June Fourth in much of China.