An injured protester is attended to during a rally against the death in Minneapolis police custody of George Floyd, in Columbia, South Carolina, U.S., May 30, 2020. (Photo by Sam Wolfe/Reuters)





A medic protestor assists a member of the media after police started firing tear gas and rubber bullets near the 5th police precinct during a demonstration to call for justice for George Floyd, a black man who died while in custody of the Minneapolis police, on May 30, 2020 in Minneapolis, Minnesota. Curfews were imposed in major US cities Saturday as clashes over police brutality escalated across America with demonstrators ignoring warnings from President Donald Trump that his government would stop the violent protests “cold”. (Photo by Chandan Khanna/AFP Photo)





People take part in a protest against the death in Minneapolis police custody of George Floyd, in Manhattan, New York, U.S., May 31, 2020. (Photo by Caitlin Ochs/Reuters)





A tanker truck drives into thousands of protesters marching on 35W northbound highway during a protest against the death in Minneapolis police custody of George Floyd, in Minneapolis, Minnesota, May 31, 2020. A tanker truck drove into protesters on interstate highway 35 West in Minneapolis, but none of the marchers were injured, according to a Reuters witness. The driver then got out of the truck and was beaten by protesters, the Reuters witness said. (Photo by Eric Miller/Reuters)





Police move past a protester they took down with batons following a rally against the death in Minneapolis police custody of George Floyd in Boston, Massachusetts, U.S., May 31, 2020. (Photo by Brian Snyder/Reuters)





Demonstrators gprotest the death of George Floyd, Sunday, May 31, 2020, near the White House in Washington. Floyd died after being restrained by Minneapolis police officers. (Photo by Evan Vucci/AP Photo)





Authorities stand guard in the area around the Georgia state Capitol as protests continued for a third day in Atlanta on Sunday, May 31, 2020. Protests were held in U.S. cities over the death of George Floyd, a black man who died after being restrained by Minneapolis police officers on May 25. (Photo by Ben Gray/Atlanta Journal-Constitution via AP Photo)





A man throws an object towards the Tucson Police Department during an early morning protest over the death of George Floyd, Sunday, May 31, 2020, in Tucson, Ariz. Protests were held throughout the country over the death of Floyd, a black man who died after being restrained by Minneapolis police officers on May 25. (Photo by Josh Galemore/Arizona Daily Star via AP Photo)





A demonstrator reacts after having milk poured into his eyes during as demonstrators gather to protest the death of George Floyd, Sunday, May 31, 2020, near the White House in Washington. Floyd died after being restrained by Minneapolis police officers. (Photo by Evan Vucci/AP Photo)





An officer points pepper spray towards people after curfew on Sunday, May 31, 2020 in Minneapolis. Protests continued following the death of George Floyd, who died after being restrained by Minneapolis police officers on Memorial Day. (Photo by John Minchillo/AP Photo)





A woman cries as she watches a building burn after a protest over the death of George Floyd, Sunday, May 31, 2020, in La Mesa, Calif. Protests were held in U.S. cities over the death of Floyd, a black man who died after being restrained by Minneapolis police officers on May 25. (Photo by Gregory Bull/AP Photo)





People protest against crimes committed by the police against black people in the favelas, outside the Rio de Janeiro's state government, Brazil, Sunday, May 31, 2020. The protest, called “Black lives matter”, was interrupted when police used tear gas to disperse people. “I can't breathe”, said some of the demonstrators, alluding to the George Floyd's death. (Photo by Silvia Izquierdo/AP Photo)





A woman holds up a banner as people gather in Trafalgar Square in central London on Sunday, May 31, 2020 to protest against the recent killing of George Floyd by police officers in Minneapolis that has led to protests across the US. (Photo by Matt Dunham/AP Photo)





Demonstrators shout as they join others outside Downing Street in central London on May 31, 2020 to protest the death of George Floyd, an unarmed black man who died after a police officer knelt on his neck for nearly nine minutes during an arrest in Minneapolis, USA. Hundreds of people gathered in central London to protest the death of George Floyd, an unarmed black man who died while being arrested in Minneapolis, USA. (Photo by Daniel Leal-Olivas/AFP Photo)





People gather during a spontaneous Black Lives Matter march through central London to protest the death of George Floyd in Minneapolis and in support of the demonstrations in North America on May 31, 2020 in London, England. The death of an African-American man, George Floyd, at the hands of police in Minneapolis has sparked violent protests across the USA. A video of the incident, taken by a bystander and posted on social media, showed Floyd's neck being pinned to the ground by police officer, Derek Chauvin, as he repeatedly said “I can’t breathe”. Chauvin was fired along with three other officers and has been charged with third-degree murder and manslaughter. (Photo by London News Pictures)





People protest in Berlin, Germany, Sunday, May 31, 2020 after the violent death of the African-American George Floyd by a white policeman in the USA against racism and police violence, among other things with a sign “Who do call when police murders”. (Photo by Bernd von Jutrczenka/dpa via AP Photo)