People gather outside the government headquarters in Hong Kong late on June 11, 2019, two days after the city witnessed its largest street protest in at least 15 years as crowds massed against plans to allow extraditions to China. (Photo by Anthony WALLACE / AFP)

People gather outside the government headquarters in Hong Kong late on June 11, 2019, two days after the city witnessed its largest street protest in at least 15 years as crowds massed against plans to allow extraditions to China. (Photo by Anthony WALLACE / AFP)

Police stand guard outside as people gather outside the government headquarters in Hong Kong late on June 11, 2019, two days after the city witnessed its largest street protest in at least 15 years as crowds massed against plans to allow extraditions to China. (Photo by Anthony WALLACE / AFP)

Posters that read "No China Extradition" are displayed as people gather outside the government headquarters in Hong Kong late on June 11, 2019, two days after the city witnessed its largest street protest in at least 15 years as crowds massed against plans to allow extraditions to China. (Photo by Anthony WALLACE / AFP)

People gather outside the government headquarters in Hong Kong late on June 11, 2019, two days after the city witnessed its largest street protest in at least 15 years as crowds massed against plans to allow extraditions to China. (Photo by Anthony WALLACE / AFP)

A poster that reads "No China Extradition" is displayed on a pillar below a walkway as people gather outside the government headquarters in Hong Kong early on June 12, 2019, three days after the city witnessed its largest street protest in at least 15 years as crowds massed against plans to allow extraditions to China. (Photo by Anthony WALLACE / AFP)