A police officer who was injured when falling of a horse during scuffles with demonstrators at Downing Street during a Black Lives Matter march in London, Saturday, June 6, 2020, is dragged by colleagues, as people protest against the killing of George Floyd by police officers in Minneapolis, USA. Floyd, a black man, died after he was restrained by Minneapolis police while in custody on May 25 in Minnesota. (Photo by Frank Augstein/AP Photo)

Demonstrators protest during a rally against Venezuelan President Nicolas Maduro, in Caracas on April 19, 2017. Venezuela braced for rival demonstrations Wednesday for and against President Nicolas Maduro, whose push to tighten his grip on power has triggered waves of deadly unrest that have escalated the country' s political and economic crisis. (Photo by Juan Barreto/AFP Photo)

An opposition activist clashes with the police during a march against Venezuelan President Nicolas Maduro held on May Day, in Caracas on May 1, 2017. Security forces in riot vans blocked off central Caracas Monday as Venezuela braced for pro- and anti- government May Day protests one month after a wave of deadly political unrest erupted. (Photo by Federico Parra/AFP Photo)

Chinese soldiers leave after Chinese President Xi Jinping inspected troops of People's Liberation Army (PLA) Hong Kong Garrison at the Shek Kong Barracks in Hong Kong, Friday, June 30, 2017. Xi landed in Hong Kong Thursday to mark the 20th anniversary of Beijing taking control of the former British colony, accompanied by a formidable layer of security as authorities showed little patience for pro-democracy protests. (Photo by Kin Cheung/AP Photo)

Police detain a woman protesting against the court verdict for Yuliy Boyarshinov, and Viktor Filinkov, members of a left-wing group Set (Network) at the Western regional military court in St.Petersburg, Russia, Monday, June 22, 2020. A Russian military court convicted two members of a left-wing youth group of terrorism Monday and sentenced them to prison terms of five and a half and seven years, in a case that human rights groups called fabricated and based on coerced testimony. (Photo by Dmitri Lovetsky/AP Photo)

A girl holds up her hand to confront the police during a banned protest in Hong Kong on July 1, 2020. China imposed a controversial national security law on Hong Kong on Tuesday, a historic move that worried many Western governments that will strangle the finance hub's freedoms and hollow out its autonomy. (Photo by Keith Tsuji/Zuma Press/Rex Features/Shutterstock)

People protest getting evicted from land designated for a Petrobras refinery, at a settlement coined the “First of May Refugee Camp”, referring to the date people moved here and set up tents and shacks to live in during the new coronavirus pandemic in Itaguai, Rio de Janeiro state, Brazil, Thursday, July 1, 2021. (Photo by Silvia Izquierdo/AP Photo)

Activists from the animal rights group PETA wearing bikinis and crocodile masks assist each other outside a store of the French fashion label Hermes in Sydney on March 4, 2021, as they protest against their use of crocodile skins and the recent purchases by Hermes and LVMH of crocodile farms in Australia's Northern Territory. (Photo by David Gray/AFP Photo)