Participants gesture with five fingers, signifying the "Five demands - not one less" and posters read "Heaven will destroy the CCP" during a vigil for the victims of the 1989 Tiananmen Square Massacre at Victoria Park in Causeway Bay, Hong Kong, Thursday, June 4, 2020, despite applications for it being officially denied. China is tightening controls over dissidents while pro-democracy activists in Hong Kong and elsewhere try to mark the 31st anniversary of the crushing of the pro-democracy movement in Beijing's Tiananmen Square. (AP Photo/Kin Cheung)

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Tiananmen Square Vigil in Hong Kong

Candles light vigil to remember the victims of Tiananmen Square Massacre

Participants gesture with five fingers, signifying the “Five demands - not one less” and posters read “Heaven will destroy the CCP” during a vigil for the victims of the 1989 Tiananmen Square Massacre. (Kin Cheung / Associated Press)

Participants holds candles during a vigil for the victims of the 1989 Tiananmen Square Massacre at Victoria Park in Causeway Bay, Hong Kong, Thursday, June 4, 2020, despite applications for it being officially denied. China is tightening controls over dissidents while pro-democracy activists in Hong Kong and elsewhere try to mark the 31st anniversary of the crushing of the pro-democracy movement in Beijing's Tiananmen Square. (AP Photo/Kin Cheung)

Participants holds candles during a Hong Kong vigil for the victims of the 1989 Tiananmen Square . (Kin Cheung / Associated Press)

Participants gather for a vigil to remember the victims of the 1989 Tiananmen Square Massacre, despite permission for it being officially denied, at Victoria Park in Causeway Bay, Hong Kong, Thursday, June 4,2020. China is tightening controls over dissidents while pro-democracy activists in Hong Kong and elsewhere try to mark the 31st anniversary of the crushing of the pro-democracy movement in Beijing's Tiananmen Square. (AP Photo/Kin Cheung)

Participants gather for the vigil June 4 at Victoria Park in Causeway Bay, Hong Kong. (Kin Cheung / Associated Press)

Participants light candles during a vigil for the victims of the 1989 Tiananmen Square Massacre at Victoria Park in Causeway Bay, Hong Kong, Thursday, June 4, 2020, despite applications for it being officially denied. China is tightening controls over dissidents while pro-democracy activists in Hong Kong and elsewhere try to mark the 31st anniversary of the crushing of the pro-democracy movement in Beijing's Tiananmen Square. (AP Photo/Kin Cheung)

Participants light candles for the vigil. (Kin Cheung / Associated Press)

Participants hold candles as they gather for a vigil to remember the victims of the 1989 Tiananmen Square Massacre, despite permission for it being officially denied, at Victoria Park in Causeway Bay, Hong Kong, Thursday, June 4,2020. China is tightening controls over dissidents while pro-democracy activists in Hong Kong and elsewhere try to mark the 31st anniversary of the crushing of the pro-democracy movement in Beijing's Tiananmen Square.(AP Photo/Kin Cheung)

Participants light candles as they gather for the vigil. (Kin Cheung / Associated Press)

In this aerial view, participants gather for a vigil to remember the victims of the 1989 Tiananmen Square Massacre, despite permission for it being officially denied, at Victoria Park in Causeway Bay, Hong Kong, Thursday, June 4, 2020. China is tightening controls over dissidents while pro-democracy activists in Hong Kong and elsewhere try to mark the 31st anniversary of the crushing of the pro-democracy movement in Beijing's Tiananmen Square. (AP Photo/Vincent Yu)

An aerial view shows participants gathering at Victoria Park. (Vincent Yu / Associated Press)

An activist holds a candle during a vigil for the victims of the 1989 Tiananmen Square Massacre, despite permission for it being officially denied, at Victoria Park in Causeway Bay, Hong Kong, Thursday, June 4,2020. China is tightening controls over dissidents while pro-democracy activists in Hong Kong and elsewhere try to mark the 31st anniversary of the crushing of the pro-democracy movement in Beijing's Tiananmen Square.(AP Photo/Kin Cheung)

An activist holds a candle during the vigil (Kin Cheung / Associated Press)

Candles at the vigil. (Kin Cheung / Associated Press)

Participants gesture with five fingers, signifying the Hong Kong protesters’ refrain “Five demands, not one less,” and posters read “Heaven will destroy the CCP.” (Kin Cheung / Associated Press)

Participants holds candles during the vigil. (Kin Cheung / Associated Press)

Hong Kong democracy activist Joshua Wong, center, holds a candle as he joins others for a vigil to remember the victims of the 1989 Tiananmen Square Massacre at Victoria Park in Causeway Bay, Hong Kong, Thursday, June 4,2020. China is tightening controls over dissidents while pro-democracy activists in Hong Kong and elsewhere try to mark the 31st anniversary of the crushing of the pro-democracy movement in Beijing's Tiananmen Square. (AP Photo/Kin Cheung)

Hong Kong democracy activist Joshua Wong, center, holds a candle as he joins others for the Victoria Park vigil. (Kin Cheung / Associated Press)

A women holds candle during a vigil to remember the victims of the 1989 Tiananmen Square Massacre, despite permission for it being officially denied, at Victoria Park in Causeway Bay, Hong Kong, Thursday, June 4,2020. China is tightening controls over dissidents while pro-democracy activists in Hong Kong and elsewhere try to mark the 31st anniversary of the crushing of the pro-democracy movement in Beijing's Tiananmen Square. (AP Photo Kin Cheung)

A woman holds a candle. (Kin Cheung / Associated Press)

A candle burns on a photo of Chinese President Xi Jinping during a vigil for the victims of the 1989 Tiananmen Square Massacre at Victoria Park in Causeway Bay, Hong Kong, Thursday, June 4, 2020, despite applications for it being officially denied. China is tightening controls over dissidents while pro-democracy activists in Hong Kong and elsewhere try to mark the 31st anniversary of the crushing of the pro-democracy movement in Beijing's Tiananmen Square. (AP Photo/Kin Cheung)

A candle burns on a photo of Chinese President Xi Jinping. (Kin Cheung / Associated Press)

Participants gesture with five fingers, signifying the "Five demands - not one less" during a vigil for the victims of the 1989 Tiananmen Square Massacre at Victoria Park in Causeway Bay, Hong Kong, Thursday, June 4, 2020. China is tightening controls over dissidents while pro-democracy activists in Hong Kong and elsewhere try to mark the 31st anniversary of the crushing of the pro-democracy movement in Beijing's Tiananmen Square. (AP Photo/Kin Cheung)

Participants gesture with five fingers, signifying “Five demands, not one less.” (Kin Cheung / Associated Press)