A person is silhouetted against a fire during a protest amid nationwide unrest following the death in Minneapolis police custody of George Floyd, in Washington, U.S., May 31, 2020. REUTERS/Jim Bourg

A person holds up a bouquet of flowers during a protest amid nationwide unrest following the death in Minneapolis police custody of George Floyd, in Miami, Florida, U.S., May 31, 2020. REUTERS/Maria Alejandra Cardona

A person administers aid to a fellow protester after being hit by pepper pray during protest against the death in Minneapolis police custody of George Floyd, in Seattle, Washington, U.S. May 31, 2020. REUTERS/Lindsey Wasson

A person walks past a damaged window as protesters rally against the death in Minneapolis police custody of George Floyd, in Washington, D.C., U.S. May 31, 2020. REUTERS/Jonathan Ernst

A person walks past a wall washed after being spray-painted by protestors, during nationwide unrest following the death in Minneapolis police custody of George Floyd, near the White House, in Washington, D.C., U.S. May 31, 2020. REUTERS/Tom Brenner

A person cleans off a wall after protestors spray-painted it a night earlier, during nationwide unrest following the death in Minneapolis police custody of George Floyd, near the White House, in Washington, D.C., U.S. May 31, 2020. REUTERS/Tom Brenner TPX IMAGES OF THE DAY

A person is arrested by police officers during a protest against the death in Minneapolis police custody of African-American man George Floyd in front of the U.S. Embassy, London, Britain, May 31, 2020. REUTERS/John Sibley

A person is arrested by police officers during a protest against the death in Minneapolis police custody of African-American man George Floyd in front of the U.S. Embassy, London, Britain, May 31, 2020. REUTERS/John Sibley

A person holds up a sign during a protest against the death in Minneapolis police custody of African-American man George Floyd in front of the U.S. Embassy, London, Britain, May 31, 2020. REUTERS/John Sibley

A person holds up a sign during a protest against the death in Minneapolis police custody of African-American man George Floyd in front of the U.S. Embassy, London, Britain, May 31, 2020. REUTERS/John Sibley

A person is seen reading a newspaper in Sefton Park as they enjoy the hot weather in Liverpool, following the outbreak of the coronavirus disease (COVID-19), Liverpool, Britain, May 31, 2020. REUTERS/Jason Cairnduff

A person is seen sunbathing in Sefton Park as they enjoy the hot weather in Liverpool, following the outbreak of the coronavirus disease (COVID-19), Liverpool, Britain, May 31, 2020. REUTERS/Jason Cairnduff

A person wearing a protective face mask and gloves holds up a Black Live Matters sign during a protest against the death in Minneapolis police custody of African-American man George Floyd, in Trafalgar Square, London, Britain, May 31, 2020. REUTERS/John Sibley

A person wearing a protective face mask holds up a Black Live Matters sign during a protest against the death in Minneapolis police custody of African-American man George Floyd, in Trafalgar Square, London, Britain, May 31, 2020. REUTERS/John Sibley

A person wearing a protective face mask holds a dog during a protest against the death in Minneapolis police custody of African-American man George Floyd, in Trafalgar Square, London, Britain, May 31, 2020. REUTERS/John Sibley

A person holds up a Black Live Matters sign during a protest against the death in Minneapolis police custody of African-American man George Floyd, in Trafalgar Square, London, Britain, May 31, 2020. REUTERS/John Sibley

A person wearing a face covering holds up a Black Live Matters sign during a protest against the death in Minneapolis police custody of African-American man George Floyd, in Trafalgar Square, London, Britain, May 31, 2020. REUTERS/John Sibley

A person wearing a face covering during a protest against the death in Minneapolis police custody of African-American man George Floyd, in Trafalgar Square, London, Britain, May 31, 2020. REUTERS/John Sibley

A person holds a sign during a protest against the death in Minneapolis police custody of African-American man George Floyd, in Trafalgar Square, London, Britain, May 31, 2020. REUTERS/John Sibley

A person wearing a protective mask and gloves sanitizes sunbeds on a newly reopened beach after months of closure due to an outbreak of the coronavirus disease (COVID-19), at Punta Hidalgo, in Punta Ala, Italy May 31, 2020. REUTERS/Jennifer Lorenzini

A person holding a face mask in national colors and a rosary prays in St. Peter's Square as Pope Francis leads the Regina Coeli prayer from his window for the first time in three months, previously delivered virtually due to measures to combat a spread of the coronavirus disease (COVID-19), at the Vatican, May 31, 2020. REUTERS/Remo Casilli

A person raises his fist in front of damaged property during nationwide unrest following the death in Minneapolis police custody of George Floyd, in Los Angeles, California, U.S., May 30, 2020. Picture taken May 30, 2020. REUTERS/Patrick T. Fallon TPX IMAGES OF THE DAY

A person prays on the floor during a protest against the death in Minneapolis police custody of George Floyd, near the White House, in Washington, U.S., May 30, 2020. REUTERS/Jonathan Ernst

A person walks inside a damaged shop during a protest against the death in Minneapolis police custody of George Floyd, in Manhattan, New York, U.S., May 30, 2020. REUTERS/Andrew Kelly

Australian citizen Jock Palfreeman speaks during an interview with Reuters in Sofia, Bulgaria, May 30, 2020. REUTERS/Stoyan Nenov

Australian citizen Jock Palfreeman speaks during an interview with Reuters in Sofia, Bulgaria, May 30, 2020. REUTERS/Stoyan Nenov

Australian citizen Jock Palfreeman speaks during an interview with Reuters in Sofia, Bulgaria, May 30, 2020. REUTERS/Stoyan Nenov

A person holds up a placard as people attend a protest against the fatal injury inflicted by Minneapolis police on African-American man George Floyd, in Berlin, Germany, May 30, 2020. REUTERS/Christian Mang

A person walks next to a fire during a demonstration against the death in Minneapolis police custody of African-American man George Floyd, in Minneapolis, Minnesota, U.S., May 30, 2020. REUTERS/Lucas Jackson

A person walks amid two fires during a demonstration against the death in Minneapolis police custody of African-American man George Floyd, in Minneapolis, Minnesota, U.S., May 30, 2020. REUTERS/Lucas Jackson

A person looks on inside a damaged Kmart store during a protest against the death in Minneapolis police custody of African-American man George Floyd, in Minneapolis, Minnesota, U.S., May 30, 2020. REUTERS/Leah Millis

A person is seen at a damaged Kmart store during a protest against the death in Minneapolis police custody of African-American man George Floyd, in Minneapolis, Minnesota, U.S., May 30, 2020. REUTERS/Leah Millis

A person is seen inside a damaged Kmart store during a protest against the death in Minneapolis police custody of African-American man George Floyd, in Minneapolis, Minnesota, U.S., May 30, 2020. REUTERS/Leah Millis TPX IMAGES OF THE DAY

A person in a wheelchair is seen during a demonstration against the death in Minneapolis police custody of African-American man George Floyd, in Minneapolis, Minnesota, U.S., May 29, 2020. REUTERS/Carlos Barria

A person uses a bandana to cover his face during a demonstration against the death in Minneapolis police custody of African-American man George Floyd, in Minneapolis, Minnesota, U.S., May 29, 2020. REUTERS/Carlos Barria

A person is seen silhouetted during a demonstration against the death in Minneapolis police custody of African-American man George Floyd, in Minneapolis, Minnesota, U.S., May 29, 2020. REUTERS/Carlos Barria

A person helps a man whose eyes are affected by tear gas during an "I can't breathe" vigil and rally in the Brooklyn borough of New York, NY, U.S., following the death of African-American George Floyd who was seen in graphic video footage gasping for breath as a white officer knelt on his neck in Minneapolis, Minnesota, May 29, 2020. REUTERS/Shannon Stapleton TPX IMAGES OF THE DAY

Shadows of crosses and a person are pictured on graves in Sao Francisco Xavier cemetery during the coronavirus disease (COVID-19) outbreak, in Rio de Janeiro, Brazil, May 29, 2020. REUTERS/Ricardo Moraes

A gravedigger prepares himself to bury the body of a person who died from the coronavirus disease (COVID-19), in Sao Francisco Xavier cemetery, in Rio de Janeiro, Brazil, May 29, 2020. REUTERS/Ricardo Moraes

A gravedigger prepares himself to bury the body of a person who died from the coronavirus disease (COVID-19), in Sao Francisco Xavier cemetery, in Rio de Janeiro, Brazil, May 29, 2020. REUTERS/Ricardo Moraes

Gravediggers bury the body of a person who died from the coronavirus disease (COVID-19), in Sao Francisco Xavier cemetery, in Rio de Janeiro, Brazil, May 29, 2020. REUTERS/Ricardo Moraes

Gravediggers bury the body of a person who died from the coronavirus disease (COVID-19), in Sao Francisco Xavier cemetery, in Rio de Janeiro, Brazil, May 29, 2020. REUTERS/Ricardo Moraes

Gravediggers bury the body of a person who died from the coronavirus disease (COVID-19), in Sao Francisco Xavier cemetery, in Rio de Janeiro, Brazil, May 29, 2020. REUTERS/Ricardo Moraes

Gravediggers place a cross after burying the body of a person who died from the coronavirus disease (COVID-19), in Sao Francisco Xavier cemetery, in Rio de Janeiro, Brazil, May 29, 2020. REUTERS/Ricardo Moraes

A person is seen in the sea in St Andrews as Scotland eases lockdown restrictions following the outbreak of the coronavirus disease (COVID-19), St Andrews, Scotland, Britain, May 29, 2020. REUTERS/Russell Cheyne

A person wearing a protective face mask is seen next to State patrol members as they guard the area in the aftermath of a protest against the death in Minneapolis police custody of African-American man George Floyd, in Minneapolis, Minnesota, U.S., May 29, 2020. REUTERS/Carlos Barria

A person is seen swimming on St Mary's Loch in the hot weather, following the outbreak of the coronavirus disease (COVID-19), St Mary's Loch, Scotland, Britain, May 29, 2020. REUTERS/Lee Smith

A person is seen swimming on St Mary's Loch in the hot weather, following the outbreak of the coronavirus disease (COVID-19), St Mary's Loch, Scotland, Britain, May 29, 2020. REUTERS/Lee Smith

A Volkswagen assembly worker works an Amarok model using personal protective equipment, as the automaker reopened its plant with measures to avoid the spread of the coronavirus disease (COVID-19), at the Assembly Plant in General Pacheco, in the outskirts of Buenos Aires, Argentina May 29, 2020. REUTERS/Agustin Marcarian

Volkswagen assembly workers work an Amarok model using personal protective equipment, as the automaker reopened its plant with measures to avoid the spread of the coronavirus disease (COVID-19), at the Assembly Plant in General Pacheco, in the outskirts of Buenos Aires, Argentina May 29, 2020. REUTERS/Agustin Marcarian

A Volkswagen assembly worker works an Amarok model using personal protective equipment as the automaker reopened its plant with measures to avoid the spread of the coronavirus disease (COVID-19), at the Assembly Plant in General Pacheco, in the outskirts of Buenos Aires, Argentina May 29, 2020. REUTERS/Agustin Marcarian

A Volkswagen assembly worker works an Amarok model using personal protective equipment, as the automaker reopened its plant with measures to avoid the spread of the coronavirus disease (COVID-19), at the Assembly Plant in General Pacheco, in the outskirts of Buenos Aires, Argentina May 29, 2020. REUTERS/Agustin Marcarian

A Volkswagen assembly worker works an Amarok model using personal protective equipment, as the automaker reopened its plant with measures to avoid the spread of the coronavirus disease (COVID-19), at the Assembly Plant in General Pacheco, in the outskirts of Buenos Aires, Argentina May 29, 2020. REUTERS/Agustin Marcarian

A Volkswagen assembly worker works an Amarok model using personal protective equipment, as the automaker reopened its plant with measures to avoid the spread of the coronavirus disease (COVID-19), at the Assembly Plant in General Pacheco, in the outskirts of Buenos Aires, Argentina May 29, 2020. REUTERS/Agustin Marcarian

A Volkswagen assembly worker works an Amarok model using personal protective equipment, as the automaker reopened its plant with measures to avoid the spread of the coronavirus disease (COVID-19), at the Assembly Plant in General Pacheco, in the outskirts of Buenos Aires, Argentina May 29, 2020. REUTERS/Agustin Marcarian

Volkswagen assembly workers work an Amarok model using personal protective equipment, as the automaker reopened its plant with measures to avoid the spread of the coronavirus disease (COVID-19), at the Assembly Plant in General Pacheco, in the outskirts of Buenos Aires, Argentina May 29, 2020. REUTERS/Agustin Marcarian

A Volkswagen assembly worker works an Amarok model using personal protective equipment, as the automaker reopened its plant with measures to avoid the spread of the coronavirus disease (COVID-19), at the Assembly Plant in General Pacheco, in the outskirts of Buenos Aires, Argentina May 29, 2020. REUTERS/Agustin Marcarian

Volkswagen assembly workers works an Amarok model using personal protective equipment, as the automaker reopened its plant with measures to avoid the spread of the coronavirus disease (COVID-19), at the Assembly Plant in General Pacheco, in the outskirts of Buenos Aires, Argentina May 29, 2020. REUTERS/Agustin Marcarian

A person rides a bicycle at the area in the aftermath of a protest after a white police officer was caught on a bystander's video pressing his knee into the neck of African-American man George Floyd, who later died at a hospital, in Minneapolis, Minnesota, U.S., May 29, 2020. REUTERS/Carlos Barria

A person wearing a protective suit checks the scene of an incident near Ramallah in the Israeli-occupied West Bank May 29, 2020. REUTERS/Mohamad Torokman