Anti-extradition bill protesters attend a demonstration in Hennessy Road in Wan Chai neighbourhood in Hong Kong, China, August 11, 2019.

Anti-extradition bill protesters use trolleys to stop passengers from entering the security gates during a mass demonstration after a woman was shot in the eye, at the Hong Kong international airport, in Hong Kong China August 13, 2019.

Anti-extradition bill protesters wave flags with Chinese calligraphy that reads "Liberate Hong Kong, the revolution of our times", at a mass demonstration after a woman was shot in the eye during a protest at Hong Kong International Airport, in Hong Kong, China August 12, 2019.

Medics attempt to remove an injured man who anti-government protesters said was an undercover policeman at the airport in Hong Kong, China August 13, 2019.

A police officer points a gun towards anti-extradition bill protesters who surrounded a police station where detained protesters are being held during clashes in Hong Kong, China July 30, 2019.

A child participates in a protest rally titled "Guard Our Children's Future" with her parents at Edinburgh Place in Hong Kong, China, August 10, 2019.

Military vehicles are parked on the grounds of the Shenzhen Bay Sports Center in Shenzhen, China August 15, 2019.

A man tries to prevent members of a group opposing the anti-government protesters from clashing with people attending a demonstration in support of the city-wide strike and to call for democratic reforms in Hong Kong, China, August 5, 2019.

An elderly woman is helped by a demonstrator after police fired tear gas during a demonstration in support of the city-wide strike and to call for democratic reforms at Tin Shui Wai in Hong Kong, China, August 5, 2019.

A protesters uses a slingshot during a demonstration in support of the city-wide strike and to call for democratic reforms at Tai Po residential area in Hong Kong, China, August 5, 2019.

Riot police disperse anti-extradition bill protesters during a mass demonstration after a woman was shot in the eye, at the Hong Kong international airport, in Hong Kong China August 13, 2019.

Police officers fire tear gas as anti-extradition bill protesters demonstrate in Sham Shui Po neighbourhood in Hong Kong, China, August 11, 2019.

Riot police use pepper spray to disperse anti-extradition bill protesters during a mass demonstration after a woman was shot in the eye, at the Hong Kong international airport, in Hong Kong China August 13, 2019.

A man takes a quiet moment before the start of a march to protest against police violence during previous demonstrations, at Chater Garden, in central Hong Kong, China July 28, 2019.

An injured young female medic receives medical assistance after being hit by a pellet round in the right eye during a demonstration in Tsim Sha Tsui neighbourhood in Hong Kong, China, August 11, 2019.

Hong Kong's Chief Executive Carrie Lam meets petitioners outside her office in Hong Kong, China August 13, 2019.

Police fire tear gas at anti-extradition bill protesters during clashes in Sham Shui Po in Hong Kong, China, August 14, 2019.

Anti-extradition bill protesters throw joss papers during Hungry Ghost Festival at Wong Tai Sin, in Hong Kong, China August 9, 2019.

Police fire tear gas at a demonstration in support of the city-wide strike and to call for democratic reforms at Tai Po residential area in Hong Kong, China, August 5, 2019.

Protesters share a moment at Mei Foo underground MTR station, after protesters moved into the station following tear gas fired by riot police, in Hong Kong, China August 11, 2019.

Fu Guohao, reporter of Chinese media Global Times website, is tied by protesters during a mass demonstration at the Hong Kong international airport, in Hong Kong, China, August 13, 2019.