A woman flashes a light from her mobile phone outside the closed Victoria Park on the 33rd anniversary of the crackdown on pro-democracy demonstrations at Beijing's Tiananmen Square in 1989, in Hong Kong, China, June 4, 2022. REUTERS/Lam Yik 

A man flashes a light from his mobile phone as people gather outside the closed Victoria Park on the 33rd anniversary of the crackdown on pro-democracy demonstrations at Beijing's Tiananmen Square in 1989, in Hong Kong, China, June 4, 2022. REUTERS/Lam Yik 

Police officers disperse people at the closed Victoria Park on the 33rd anniversary of the crackdown on pro-democracy demonstrations at Beijing's Tiananmen Square in 1989, in Hong Kong, China, June 4, 2022. REUTERS/Lam Yik 

A woman flashes a light from her mobile phone outside the closed Victoria Park on the 33rd anniversary of the crackdown on pro-democracy demonstrations at Beijing's Tiananmen Square in 1989, in Hong Kong, China, June 4, 2022. REUTERS/Lam Yik 

A man, wearing a hat with a candle light on top, stands outside the closed Victoria Park on the 33rd anniversary of the crackdown on pro-democracy demonstrations at Beijing's Tiananmen Square in 1989, in Hong Kong, China, June 4, 2022. REUTERS/Lam Yik 

A man flashes a light from his mobile phone outside the closed Victoria Park on the 33rd anniversary of the crackdown on pro-democracy demonstrations at Beijing's Tiananmen Square in 1989, in Hong Kong, China, June 4, 2022. REUTERS/Lam Yik 

Police officers disperse people at the closed Victoria Park on the 33rd anniversary of the crackdown on pro-democracy demonstrations at Beijing's Tiananmen Square in 1989, in Hong Kong, China, June 4, 2022. REUTERS/Lam Yik 

A man shows an image of a candlelight outside the closed Victoria Park on the 33rd anniversary of the crackdown on pro-democracy demonstrations at Beijing's Tiananmen Square in 1989, in Hong Kong, China, June 4, 2022. REUTERS/Lam Yik 

Police officers ask people to leave outside the closed Victoria Park on the 33rd anniversary of the crackdown on pro-democracy demonstrations at Beijing's Tiananmen Square in 1989, in Hong Kong, China, June 4, 2022. REUTERS/Tyrone Siu 

A woman takes a picture of electric candles placed outside the closed Victoria Park on the 33rd anniversary of the crackdown on pro-democracy demonstrations at Beijing's Tiananmen Square in 1989, in Hong Kong, China, June 4, 2022. REUTERS/Tyrone Siu 

Police officers detain a man as people gather outside the closed Victoria Park on the 33rd anniversary of the crackdown on pro-democracy demonstrations at Beijing's Tiananmen Square in 1989, in Hong Kong, China, June 4, 2022. REUTERS/Tyrone Siu 

A man shows an image of a candlelight to pay tribute outside the closed Victoria Park on the 33rd anniversary of the crackdown on pro-democracy demonstrations at Beijing's Tiananmen Square in 1989, in Hong Kong, China, June 4, 2022. REUTERS/Tyrone Siu 

A man holds his phone with the flashlight on to pay tribute outside the closed Victoria Park on the 33rd anniversary of the crackdown on pro-democracy demonstrations at Beijing's Tiananmen Square in 1989, in Hong Kong, China, June 4, 2022. REUTERS/Tyrone Siu 

Police officers detain a man outside the closed Victoria Park on the 33rd anniversary of the crackdown on pro-democracy demonstrations at Beijing's Tiananmen Square in 1989, in Hong Kong, China, June 4, 2022. REUTERS/Tyrone Siu 

A man holding flowers walks past police officers at Victoria Park on the 33rd anniversary of the crackdown on pro-democracy demonstrations at Beijing's Tiananmen Square in 1989, in Hong Kong, China, June 4, 2022. REUTERS/Lam Yik 

A man wearing a face mask reading "remembering Tiananmen" is taken away by police officers at Victoria Park on the 33rd anniversary of the crackdown on pro-democracy demonstrations at Beijing's Tiananmen Square in 1989, in Hong Kong, China, June 4, 2022. REUTERS/Lam Yik 

A woman holding blank papers is stopped and searched by police officers on the 33rd anniversary of the crackdown on pro-democracy demonstrations at Beijing's Tiananmen Square in 1989, in Hong Kong, China June 4, 2022. REUTERS/Lam Yik 

A woman holding blank papers is stopped and searched by police officers on the 33rd anniversary of the crackdown on pro-democracy demonstrations at Beijing's Tiananmen Square in 1989, in Hong Kong, China June 4, 2022. REUTERS/Lam Yik 

Police officers stand guard at Victoria Park on the 33rd anniversary of the crackdown on pro-democracy demonstrations at Beijing's Tiananmen Square in 1989, in Hong Kong, China June 4, 2022. REUTERS/Lam Yik 

Police officers stand guard at Victoria Park on the 33rd anniversary of the crackdown on pro-democracy demonstrations at Beijing's Tiananmen Square in 1989, in Hong Kong, China June 4, 2022. REUTERS/Lam Yik 

A woman stands in front of the closed Victoria Park on the 33rd anniversary of the crackdown on pro-democracy demonstrations at Beijing's Tiananmen Square in 1989, in Hong Kong, China June 4, 2022. REUTERS/Lam Yik 

Police vans are parked outside Victoria Park on the 33rd anniversary of the crackdown on pro-democracy demonstrations at Beijing's Tiananmen Square in 1989, in Hong Kong, China June 4, 2022. REUTERS/Lam Yik 

A general view of Victoria Park on the 33rd anniversary of the crackdown on pro-democracy demonstrations at Beijing's Tiananmen Square in 1989, in Hong Kong, China June 4, 2022. REUTERS/Lam Yik 

A view of Victoria Park as it is closed on the 33rd anniversary of the crackdown on pro-democracy demonstrations at Beijing's Tiananmen Square in 1989, in Hong Kong, China June 4, 2022. REUTERS/Lam Yik 

People look at Victoria Park as it is closed on the 33rd anniversary of the crackdown on pro-democracy demonstrations at Beijing's Tiananmen Square in 1989, in Hong Kong, China June 4, 2022. REUTERS/Lam Yik 

Police officers stand guard at Victoria Park on the 33rd anniversary of the crackdown on pro-democracy demonstrations at Beijing's Tiananmen Square in 1989, in Hong Kong, China June 4, 2022. REUTERS/Lam Yik 

Workers erect construction hoardings around a painted slogan commemorating the 1989 Tiananmen Square crackdown, along the Swire Bridge at the University of Hong Kong (HKU) in Hong Kong, China January 29, 2022. REUTERS/Jessie Pang 

Construction workers cover with a metal plate parts of a painted slogan commemorating the 1989 Tiananmen Square crackdown, along the Swire Bridge at the University of Hong Kong (HKU) in Hong Kong, China January 29, 2022. The Chinese characters read: "cold-blooded". REUTERS/Jessie Pang 

Workers erect construction hoardings around a painted slogan commemorating the 1989 Tiananmen Square crackdown, along the Swire Bridge at the University of Hong Kong (HKU) in Hong Kong, China January 29, 2022. REUTERS/Jessie Pang 

Images of Goddess of Democracy statue are placed by students, to pay tribute to the victims of the Tiananmen Square crackdown in Beijing on June 4, 1989, at the place where the statue used to stand, at the Chinese university of Hong Kong, after been removed by school authority, in Hong Kong, China, December 24, 2021. REUTERS/Tyrone Siu 

A student holds a candle to pay tribute to the victims of the Tiananmen Square crackdown in Beijing on June 4, 1989, at the place where the Goddess of Democracy statue used to stand, at the Chinese university of Hong Kong, after been removed by school authority, in Hong Kong, China, December 24, 2021. REUTERS/Tyrone Siu 

Students place candles and images of Goddess of Democracy statue, to pay tribute to the victims of the Tiananmen Square crackdown in Beijing on June 4, 1989, at the place where the statue used to stand, at the Chinese university of Hong Kong, after been removed by school authority, in Hong Kong, China, December 24, 2021. REUTERS/Tyrone Siu 

A student lights candles, to pay tribute to the victims of the Tiananmen Square crackdown in Beijing on June 4, 1989, at the place where Goddess of Democracy statue used to stand, at the Chinese university of Hong Kong, after been removed by school authority, in Hong Kong, China, December 24, 2021. REUTERS/Tyrone Siu 

Candles and images of Goddess of Democracy statue are placed by students, to pay tribute to the victims of the Tiananmen Square crackdown in Beijing on June 4, 1989, at the place where the statue used to stand, at the Chinese university of Hong Kong, after been removed by school authority, in Hong Kong, China, December 24, 2021. REUTERS/Tyrone Siu 

The site where the "Pillar of Shame" statue by Danish sculptor Jens Galschiot which pays tribute to the victims of the Tiananmen Square crackdown in Beijing on June 4, 1989, used to stand, is empty after being removed at the University of Hong Kong (HKU), in Hong Kong, China, December 23, 2021. REUTERS/Tyrone Siu 

A man tries to peep into the site where the "Pillar of Shame" statue by Danish sculptor Jens Galschiot which pays tribute to the victims of the Tiananmen Square crackdown in Beijing on June 4, 1989, used to stand, after being removed at the University of Hong Kong (HKU), in Hong Kong, China, December 23, 2021. REUTERS/Tyrone Siu 

Workers remove a part of "Pillar of Shame" by Danish sculptor Jens Galschiot which to pay tribute to the victims of the Tiananmen Square crackdown in Beijing on June 4, 1989, at the University of Hong Kong (HKU) in Hong Kong, China, December 23, 2021. REUTERS/Tyrone Siu 

Workers remove a part of "Pillar of Shame" by Danish sculptor Jens Galschiot which to pay tribute to the victims of the Tiananmen Square crackdown in Beijing on June 4, 1989, at the University of Hong Kong (HKU) in Hong Kong, China, December 23, 2021. REUTERS/Tyrone Siu 

Security stand guard near "Pillar of Shame" by Danish sculptor Jens Galschiot which pay tribute to the victims of the Tiananmen Square crackdown in Beijing on June 4, 1989, as they prepare to remove it from the University of Hong Kong (HKU) in Hong Kong, China, December 23, 2021. REUTERS/Tyrone Siu 

Workers remove a part of "Pillar of Shame" by Danish sculptor Jens Galschiot which to pay tribute to the victims of the Tiananmen Square crackdown in Beijing on June 4, 1989, at the University of Hong Kong (HKU) in Hong Kong, China, December 23, 2021. REUTERS/Tyrone Siu 

Workers remove a part of "Pillar of Shame" by Danish sculptor Jens Galschiot which to pay tribute to the victims of the Tiananmen Square crackdown in Beijing on June 4, 1989, at the University of Hong Kong (HKU) in Hong Kong, China, December 23, 2021. REUTERS/Tyrone Siu 

A girl places a flower bouquet to pay tribute to the victims of the Tiananmen Square crackdown in Beijing on June 4, 1989, at the place where the Goddess of Democracy statue used to stand, at the Chinese university of Hong Kong, after been removed by school authority, in Hong Kong, China, December 24, 2021. REUTERS/Tyrone Siu 

Candles are placed in the shape of the Goddess of Democracy statue to pay tribute to the victims of the Tiananmen Square crackdown in Beijing on June 4, 1989, at the place where the statue used to stand, at the Chinese university of Hong Kong, after been removed by school authority, in Hong Kong, China, December 24, 2021. REUTERS/Tyrone Siu 

The site where the "Pillar of Shame" statue by Danish sculptor Jens Galschiot which pays tribute to the victims of the Tiananmen Square crackdown in Beijing on June 4, 1989, used to stand, is empty after being removed at the University of Hong Kong (HKU), in Hong Kong, China, December 23, 2021. REUTERS/Tyrone Siu 

Security stand guard near "Pillar of Shame" by Danish sculptor Jens Galschiot which pay tribute to the victims of the Tiananmen Square crackdown in Beijing on June 4, 1989, as they prepare to remove it from the University of Hong Kong (HKU) in Hong Kong, China, December 23, 2021. REUTERS/Tyrone Siu 

The eight-metre-high "Pillar of Shame" by Danish sculptor Jens Galschiot to pay tribute to the victims of the Tiananmen Square crackdown in Beijing on June 4, 1989 is seen before it is set to be removed at the University of Hong Kong (HKU) in Hong Kong, China October 12, 2021. REUTERS/Tyrone Siu 

The eight-metre-high "Pillar of Shame" by Danish sculptor Jens Galschiot to pay tribute to the victims of the Tiananmen Square crackdown in Beijing on June 4, 1989 is seen before it is set to be removed at the University of Hong Kong (HKU) in Hong Kong, China October 12, 2021. REUTERS/Tyrone Siu 

The eight-metre-high "Pillar of Shame" by Danish sculptor Jens Galschiot to pay tribute to the victims of the Tiananmen Square crackdown in Beijing on June 4, 1989 is seen before it is set to be removed at the University of Hong Kong (HKU) in Hong Kong, China October 12, 2021. REUTERS/Tyrone Siu 

People photograph the eight-metre-high "Pillar of Shame" by Danish sculptor Jens Galschiot, to pay tribute to the victims of the Tiananmen Square crackdown in Beijing on June 4, 1989, before it is set to be removed at the University of Hong Kong (HKU) in Hong Kong, China October 12, 2021. REUTERS/Tyrone Siu 

An exhibition board is pictured at the the June 4th Museum showing the annual turnout of the candlelight vigil which mourns those who died during the military crackdown on the pro-democracy movement at Beijing's Tiananmen Square in 1989, after it was announced that the Hong Kong Alliance in Support of Patriotic Democratic Movements of China group will disband, in Hong Kong, China September 25, 2021. REUTERS/Tyrone Siu 

Pro-democracy activists shout slogans outside the court to support activists charged for participating in the assembly on June 4 to commemorate the 1989 crackdown on protesters in and around Beijing's Tiananmen Square, in Hong Kong, China, September 15, 2021. REUTERS/Tyrone Siu 

Pro-democracy activists shout slogans outside the court to support activists charged for participating in the assembly on June 4 to commemorate the 1989 crackdown on protesters in and around Beijing's Tiananmen Square, in Hong Kong, China, September 15, 2021. REUTERS/Tyrone Siu 

Pro-democracy activist Cheung Man-kwong bows as he leaves the court after his sentence was suspended for participating in the assembly on June 4 to commemorate the 1989 crackdown on protesters in and around Beijing's Tiananmen Square, in Hong Kong, China, September 15, 2021. REUTERS/Tyrone Siu 

Pro-democracy activist Cheung Man-kwong leaves the court after his sentence was suspended for participating in the assembly on June 4 to commemorate the 1989 crackdown on protesters in and around Beijing's Tiananmen Square, in Hong Kong, China, September 15, 2021. REUTERS/Tyrone Siu 

Pro-democracy activist Alexandra Wong greets people (not in picture) outside the court who are supporting activists charged for participating in the assembly on June 4 to commemorate the 1989 crackdown on protesters in and around Beijing's Tiananmen Square, in Hong Kong, China, September 15, 2021. REUTERS/Tyrone Siu 

A combination picture shows the June 4th Museum in Hong Kong, China, which commemorates the 1989 Tiananmen Square crackdown, on September 5, 2021 and after a raid by police on September 9, 2021. REUTERS/Tyrone Siu 

Leung Kam-wai, one of the arrested members of the Hong Kong Alliance in Support of Patriotic Democratic Movements of China is escorted by police as they leave after police search the June 4th Museum, which commemorates the 1989 Tiananmen Square crackdown, in Hong Kong, China September 9, 2021. REUTERS/Tyrone Siu 

Richard Tsoi, former secretary of the Hong Kong Alliance in Support of Patriotic Democratic Movements of China speaks to media as they leave after police search the June 4th Museum, which commemorates the 1989 Tiananmen Square crackdown, in Hong Kong, China September 9, 2021. REUTERS/Tyrone Siu 

Leung Kam-wai, one of the arrested members of the Hong Kong Alliance in Support of Patriotic Democratic Movements of China is escorted by police as they leave June 4th Museum, which commemorates the 1989 Tiananmen Square crackdown, in Hong Kong, China September 9, 2021. REUTERS/Tyrone Siu 

Police collect a cut out of the Goddess of Democracy at June 4th Museum, which commemorates the 1989 Tiananmen Square crackdown, as they search the museum after four members of the Hong Kong Alliance in Support of Patriotic Democratic Movements in China were arrested, in Hong Kong, China September 9, 2021. REUTERS/Tyrone Siu