Protests and demonstrations

A no-entry road sign sits in front of the entrance to Britain's Parliament in London, Thursday, Aug. 29, 2019. Queen Elizabeth II has approved the U.K. government's request to suspend Parliament amid a growing crisis over Brexit. (AP Photo/Kirsty Wigglesworth)

In this photo released by China's Xinhua News Agency, armored personnel carriers of China's People's Liberation Army (PLA) pass through the Huanggang Port border between China and Hong Kong, Thursday, Aug. 29, 2019. Chinese state media has published photos of the country's Hong Kong-based troops' armored carriers and a patrol boat undertaking what they call a routine rotation. (Yuan Junmin/Xinhua via AP)

Greta Thunberg, a 16-year-old Swedish climate activist, waves after sailing in New York harbor aboard the Malizia II, Wednesday, Aug. 28, 2019. The zero-emissions yacht left Plymouth, England on Aug. 14. She is scheduled to address the United Nations Climate Action Summit on Sept. 23. (AP Photo/Mary Altaffer)

Greta Thunberg, a 16-year-old Swedish climate activist, speaks in front of a crowd of people after sailing in New York harbor aboard the Malizia II, Wednesday, Aug. 28, 2019. The zero-emissions yacht left Plymouth, England on Aug. 14. She is scheduled to address the United Nations Climate Action Summit on Sept. 23. (AP Photo/Mary Altaffer)

FILE In this file photo taken on Sunday, July 14, 2019, Russian opposition candidate Russian and activist Ilya Yashin gestures while speaking to a crowd during a protest in Moscow, Russia. A prominent Russian opposition figure has been detained by police immediately after leaving a jail where he had served two sentences connected to protests in Moscow. (AP Photo/Pavel Golovkin, File)

A demonstrator sits near a sign during a protest opposing the recent firings of Cathay Pacific employees in Hong Kong, Wednesday, Aug. 28, 2019. Trade union members in Hong Kong rallied Wednesday against the city's flagship Cathay Pacific airline for firing employees apparently because of links to this summer's ongoing pro-democracy protests. (AP Photo/Vincent Yu)

CORRECTS LAM'S QUOTE - Hong Kong Chief Executive Carrie Lam Listens to reporters' questions during a press conference in Hong Kong Tuesday, Aug. 27, 2019. Lam says she has met with a group of young people about ongoing pro-democracy protests, but she showed no sign of budging on any of the protesters' demands. (AP Photo/Vincent Yu)

A policeman's gun was dropped on the floor, left, after clashed with demonstrators on a street during a protest in Hong Kong on Sunday, Aug. 25, 2019. Lawmakers on each side of Hong Kong's political divide say the other side bears responsibility after violence during anti-government protests over the weekend. (AP Photo/Kin Cheung)

In this handout photo taken from the Twitter account of Iranian Foreign Minister Mohammad Javad Zarif, shows French President Emmanuel Macron, right, French Foreign Minister Jean-Yves le Drian, second right, meeting Iranian Foreign Minister Mohammad Javad Zarif, left in white shirt, Sunday, Aug.25, 2019 in Biarritz, southwestern France. Zarif paid an unannounced visit Sunday to the G-7 summit and headed straight to the buildings where leaders of the world's major democracies have been debating how to handle the country's nuclear ambitions. (Twitter account of Iranian Foreign Minister Mohammad Javad Zarif via AP)

Policemen pull out their guns after a confrontation with demonstrators during a protest in Hong Kong, Sunday, Aug. 25, 2019. Hong Kong police have rolled out water cannon trucks for the first time in this summer's pro-democracy protests. The two trucks moved forward with riot officers Sunday evening as they pushed protesters back along a street in the outlying Tsuen Wan district. (AP Photo/Vincent Yu)