People attend a protest over the death of George Floyd in Los Altos of the San Francisco Bay Area, the United States, June 5, 2020. Photo:Xinhua

People attend a protest over the death of George Floyd in Los Altos of the San Francisco Bay Area, the United States, June 5, 2020. Photo:Xinhua

People attend a protest over the death of George Floyd in Los Altos of the San Francisco Bay Area, the United States, June 5, 2020. Photo:Xinhua

People attend a protest over the death of George Floyd in Los Altos of the San Francisco Bay Area, the United States, June 5, 2020. Photo:Xinhua