Demonstrators clash with police during protest over death of George Floyd in Chicago

Demonstrators protest over the death of George Floyd in front of Trump Tower in Chicago, the United States, on May 30, 2020. Chicago Mayor Lori Lightfoot imposed a curfew on the city on May 30. Chicago's precautions followed a chaotic and violent Saturday evening, when many businesses along the streets were looted, police cars overturned and some properties damaged. (Photo by Christopher Dilts/Xinhua)