Demonstrators wearing face masks as a preventive measure against the coronavirus disease (COVID-19), hold placards reading "No to (U.S. President) Trump, racist, repressive, imperialist", during a protest at the Buenos Aires' obelisk against police violence, Argentina June 2, 2020. REUTERS/Agustin Marcarian

A demonstrator wearing a face mask as a preventive measure against the coronavirus disease (COVID-19), holds a placard that reads "Justice for George Floyd and all the victims", during a protest against police violence, in Buenos Aires, Argentina June 2, 2020. REUTERS/Agustin Marcarian

Demonstrators wearing face masks as a preventive measure against the coronavirus disease (COVID-19), hold a flag depicting the face of U.S. President Donald Trump as a pig, during a protest against police violence, in Buenos Aires, Argentina June 2, 2020. REUTERS/Agustin Marcarian

Demonstrators wearing face masks as a preventive measure against the coronavirus disease (COVID-19), hold a flag depicting the face of U.S. President Donald Trump as a pig, during a protest against police violence, in Buenos Aires, Argentina June 2, 2020. REUTERS/Agustin Marcarian

A demonstrator wearing a face mask as a preventive measure against the coronavirus disease (COVID-19), holds a placard that reads "Prison for George Floyd's killers", during a protest at the Buenos Aires' obelisk against police violence, Argentina June 2, 2020. REUTERS/Agustin Marcarian

A demonstrator wearing a face mask as a preventive measure against the coronavirus disease (COVID-19), holds a portrait depicting the face of George Floyd and a placard reading "It's not just the police. It's the racist/imperialist state", during a protest against police violence, in Buenos Aires, Argentina June 2, 2020. REUTERS/Agustin Marcarian

A demonstrator wearing a face mask as a preventive measure against the coronavirus disease (COVID-19), holds a portrait depicting the face of George Floyd and a placard depicting Nazi leader Adolf Hitler with the United State's flag as a moustache that reads "It's not just the police. It's the racist/imperialist state", during a protest against police violence, in Buenos Aires, Argentina June 2, 2020. REUTERS/Agustin Marcarian

A man holding a rifle sits in a vehicle observing the protest against the deaths of Breonna Taylor by Louisville police and George Floyd by Minneapolis police, in Louisville, Kentucky, U.S. June 1, 2020. The man says he is a libertarian who is tired of the violence and ready to protect people. REUTERS/Bryan Woolston

Relatives and friends wear protective masks due to the coronavirus disease (COVID-19) outbreak, as they attend the funeral of Matheus Oliveira, 23, who according to his relatives and neighbours was shot dead during a police action in Catrambi slum, in Rio de Janeiro, Brazil, June 1, 2020. REUTERS/Ricardo Moraes

Friends wearing protective masks due to the coronavirus disease (COVID-19) outbreak, carry the coffin during the funeral of Matheus Oliveira, 23, who according to his relatives and neighbours was shot dead during a police action in Catrambi slum, in Rio de Janeiro, Brazil, June 1, 2020. REUTERS/Ricardo Moraes

Friends wearing protective masks due to the coronavirus disease (COVID-19) outbreak, carry the coffin during the funeral of Matheus Oliveira, 23, who according to his relatives and neighbours was shot dead during a police action in Catrambi slum, in Rio de Janeiro, Brazil, June 1, 2020. REUTERS/Ricardo Moraes

Friends wearing protective masks due to the coronavirus disease (COVID-19) outbreak, carry the coffin during the funeral of Matheus Oliveira, 23, who according to his relatives and neighbours was shot dead during a police action in Catrambi slum, in Rio de Janeiro, Brazil, June 1, 2020. REUTERS/Ricardo Moraes

People attend the funeral of Iyad Khayri in Jerusalem May 31, 2020. REUTERS/ Ammar Awad

People attend the funeral of Iyad Khayri in Jerusalem May 31, 2020. REUTERS/ Ammar Awad

People attend the funeral of Iyad Khayri in Jerusalem May 31, 2020. REUTERS/ Ammar Awad

People attend the funeral of Iyad Khayri in Jerusalem May 31, 2020. REUTERS/ Ammar Awad

A woman wearing a face mask takes part in a protest against police violence during operations in slums against drug gangs and racism in Brazil, in front of the Guanabara Palace in Rio de Janeiro, Brazil, May 31, 2020. REUTERS/Pilar Olivares

People take part in a protest against police violence during operations in slums against drug gangs and racism in Brazil, in front of the Guanabara Palace in Rio de Janeiro, Brazil, May 31, 2020. REUTERS/Pilar Olivares

A woman wearing a face mask takes part in a protest against police violence during operations in slums against drug gangs and racism in Brazil, in front of the Guanabara Palace in Rio de Janeiro, Brazil, May 31, 2020. REUTERS/Pilar Olivares

A woman wearing a face mask kneels in front of security forces officers as she takes part in a protest against police violence during operations in slums against drug gangs and racism in Brazil, in front of the Guanabara Palace in Rio de Janeiro, Brazil, May 31, 2020. REUTERS/Pilar Olivares

People practice social distancing as take part in a protest against police violence during operations in slums against drug gangs and racism in Brazil, in front of the Guanabara Palace in Rio de Janeiro, Brazil, May 31, 2020. REUTERS/Pilar Olivares

A woman wearing a protective face mask holds a banner reading "Stop killing us" as she takes part in a protest against police violence during operations in slums against drug gangs and racism in Brazil, in front of the Guanabara Palace in Rio de Janeiro, Brazil, May 31, 2020. REUTERS/Pilar Olivares

People wearing protective face masks take part in a protest against police violence during operations in slums against drug gangs and racism in Brazil, in front of the Guanabara Palace in Rio de Janeiro, Brazil, May 31, 2020. REUTERS/Pilar Olivares

People practice social distancing as take part in a protest against police violence during operations in slums against drug gangs and racism in Brazil, in front of the Guanabara Palace in Rio de Janeiro, Brazil, May 31, 2020. REUTERS/Pilar Olivares

People take part in a protest against police violence during operations in slums against drug gangs and racism in Brazil, in front of the Guanabara Palace in Rio de Janeiro, Brazil, May 31, 2020. REUTERS/Pilar Olivares

A woman holds a banner reading "Stop killing us" as she takes part in a protest against police violence during operations in slums against drug gangs and racism in Brazil, in front of the Guanabara Palace in Rio de Janeiro, Brazil, May 31, 2020. REUTERS/Pilar Olivares

A demonstrator holds a sign reading "Stop killing us, black lives matter", as he takes part in a protest against police violence during operations in slums against drug gangs and racism in Brazil, in front of the Guanabara Palace in Rio de Janeiro, Brazil, May 31, 2020. REUTERS/Pilar Olivares

A man holds a banner with the face of late rights activist and councilwoman Marielle Franco, reading "Our weapon is education", as he takes part in a protest against police violence during operations in slums against drug gangs and racism in Brazil, in front of the Guanabara Palace in Rio de Janeiro, Brazil, May 31, 2020. REUTERS/Pilar Olivares

A woman wearing a protective face mask takes part in a protest against police violence during operations in slums against drug gangs and racism in Brazil, in front of the Guanabara Palace in Rio de Janeiro, Brazil, May 31, 2020. REUTERS/Pilar Olivares

A woman wearing a protective face mask holds a sign reading "For the end of violent operations in the slums" as she takes part in a protest against police violence during operations in slums against drug gangs and racism in Brazil, in front of the Guanabara Palace in Rio de Janeiro, Brazil, May 31, 2020. REUTERS/Pilar Olivares

People protest against police violence during operations in slums against drug gangs and racism in Brazil, in front of the Guanabara Palace in Rio de Janeiro, Brazil, May 31, 2020. REUTERS/Pilar Olivares

Men wearing face masks hold up signs during a protest against the death in Minneapolis police custody of African-American man George Floyd, in front of the U.S Embassy at Brandenburg Gate in Berlin, Germany, May 31, 2020. The sign on the right reads: "This is white violence." REUTERS/Christian Mang

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

Israeli soldiers run near the scene of an incident near Ramallah in the Israeli-occupied West Bank May 29, 2020. REUTERS/Mohamad Torokman

Israeli forces stand guard near the scene of an incident near Ramallah in the Israeli-occupied West Bank May 29, 2020. REUTERS/Mohamad Torokman

A Forensic Service vehicle containing bodies is pictured after six inmates died and two more were injured in a violent brawl in the National Women's Penitentiary for Social Adaptation on the outskirts of Tegucigalpa May 24, 2020. REUTERS/Jorge Cabrera

Forensic technicians are pictured after six inmates died and two more were injured in a violent brawl in the National Women's Penitentiary for Social Adaptation on the outskirts of Tegucigalpa, Honduras May 24, 2020. REUTERS/Jorge Cabrera

A morgue worker carries a bag containing one body after six inmates died and two more were injured in the National Women's Penitentiary for Social Adaptation, at a morgue in Tegucigalpa, Honduras May 24, 2020. REUTERS/Jorge Cabrera

Forensic technicians carry a bag containing one body after six inmates died and two more were injured in a violent brawl in the National Women's Penitentiary for Social Adaptation on the outskirts of Tegucigalpa, Honduras May 24, 2020. REUTERS/Jorge Cabrera

A voter marks his ballot inside a booth at a polling station during the Presidential, Legislative and Communal council elections, under the simmering political violence and the growing threat of the coronavirus disease (COVID-19) spread, in Gitega, Burundi May 20, 2020. REUTERS/Evrard Ngendakumana

Voters gather to sanitise their hands at a polling station during the Presidential, Legislative and Communal council elections, under the simmering political violence and the growing threat of the coronavirus disease (COVID-19) spread, in Gitega, Burundi May 20, 2020. REUTERS/Evrard Ngendakumana

Voters sanitise their hands at a polling station during the Presidential, Legislative and Communal council elections, under the simmering political violence and the growing threat of the coronavirus disease (COVID-19) spread, in Gitega, Burundi May 20, 2020. REUTERS/Evrard Ngendakumana

A member of the Independent National Electoral Commission (CENI) prepares ballot boxes at a voting station during the Presidential, Legislative and Communal council elections, under the simmering political violence and the growing threat of the coronavirus disease (COVID-19) spread, in Gitega, Burundi May 20, 2020. REUTERS/Evrard Ngendakumana

Members of the Independent National Electoral Commission (CENI) lift empty ballot boxes at a voting station during the Presidential, Legislative and Communal council elections, under the simmering political violence and the growing threat of the coronavirus disease (COVID-19) spread, in Gitega, Burundi May 20, 2020. REUTERS/Evrard Ngendakumana

Burundi policemen are reflected in a window as they queue at a voting station during the Presidential, Legislative and Communal council elections held under the simmering political violence and the growing threat of the coronavirus disease (COVID-19) spread, in Gitega, Burundi May 20, 2020. REUTERS/Evrard Ngendakumana TPX IMAGES OF THE DAY

Burundi policemen queue at a voting station during the Presidential, Legislative and Communal council elections, under the simmering political violence and the growing threat of the coronavirus disease (COVID-19) spread, in Gitega, Burundi May 20, 2020. REUTERS/Evrard Ngendakumana

Voters gather to sanitise at a polling centre during the Presidential, Legislative and Communal council elections, under the simmering political violence and the growing threat of the coronavirus disease (COVID-19) spread, in Gitega, Burundi May 20, 2020. REUTERS/Evrard Ngendakumana

A voter is seen after marking his ballot in a booth at a polling station during the Presidential, Legislative and Communal council elections, under the simmering political violence and the growing threat of the coronavirus disease (COVID-19) spread, in Gitega, Burundi May 20, 2020. REUTERS/Evrard Ngendakumana

Presidential candidate Evariste Ndayishimiye of the Burundi's ruling party, the National Council for the Defence of Democracy-Forces for the Defence of Democracy (CNDD-FDD), queues at a polling centre during the Presidential, Legislative and Communal council elections, under the simmering political violence and the growing threat of the coronavirus disease (COVID-19) spread, in Gitega, Burundi May 20, 2020. REUTERS/Evrard Ngendakumana

Presidential candidate Evariste Ndayishimiye of the Burundi's ruling party, the National Council for the Defence of Democracy-Forces for the Defence of Democracy (CNDD-FDD), queues at a polling centre during the Presidential, Legislative and Communal council elections, under the simmering political violence and the growing threat of the coronavirus disease (COVID-19) spread, in Gitega, Burundi May 20, 2020. REUTERS/Evrard Ngendakumana

Presidential candidate Evariste Ndayishimiye of the Burundi's ruling party, the National Council for the Defence of Democracy-Forces for the Defence of Democracy (CNDD-FDD), arrives at a polling centre during the Presidential, Legislative and Communal council elections, under the simmering political violence and the growing threat of the coronavirus disease (COVID-19) spread, in Gitega, Burundi May 20, 2020. REUTERS/Evrard Ngendakumana

Presidential candidate Evariste Ndayishimiye of the Burundi's ruling party, the National Council for the Defence of Democracy-Forces for the Defence of Democracy (CNDD-FDD), arrives at a polling centre during the Presidential, Legislative and Communal council elections, under the simmering political violence and the growing threat of the coronavirus disease (COVID-19) spread, in Gitega, Burundi May 20, 2020. REUTERS/Evrard Ngendakumana

Presidential candidate Evariste Ndayishimiye of the Burundi's ruling party, the National Council for the Defence of Democracy-Forces for the Defence of Democracy (CNDD-FDD), arrives at a polling centre during the Presidential, Legislative and Communal council elections, under the simmering political violence and the growing threat of the coronavirus disease (COVID-19) spread, in Gitega, Burundi May 20, 2020. REUTERS/Evrard Ngendakumana

Presidential candidate Evariste Ndayishimiye of the Burundi's ruling party, the National Council for the Defence of Democracy-Forces for the Defence of Democracy (CNDD-FDD), casts his ballot at a polling centre during the Presidential, Legislative and Communal council elections, under the simmering political violence and the growing threat of the coronavirus disease (COVID-19) spread, in Gitega, Burundi May 20, 2020. REUTERS/Evrard Ngendakumana

A member of the Independent National Electoral Commission (CENI) prepares ballot papers at a voting station during the Presidential, Legislative and Communal council elections under simmering political violence and the growing threat of the coronavirus disease (COVID-19) spread in Gitega, Burundi May 20, 2020. REUTERS/Evrard Ngendakumana

A voter carries her child as she waits at a polling station during the Presidential, Legislative and Communal council elections, under the simmering political violence and the growing threat of the coronavirus disease (COVID-19) spread, in Gitega, Burundi May 20, 2020. REUTERS/Evrard Ngendakumana

A voter carries her child as she casts her ballot at a polling station during the Presidential, Legislative and Communal council elections, under the simmering political violence and the growing threat of the coronavirus disease (COVID-19) spread, in Gitega, Burundi May 20, 2020. REUTERS/Evrard Ngendakumana

A voter carries her child as she waits at a polling station during the Presidential, Legislative and Communal council elections, under the simmering political violence and the growing threat of the coronavirus disease (COVID-19), in Gitega, Burundi May 20, 2020. REUTERS/Evrard Ngendakumana

Voters gather to sanitise at a polling centre during the Presidential, Legislative and Communal council elections, under the simmering political violence and the growing threat of the coronavirus disease (COVID-19) spread, in Gitega, Burundi May 20, 2020. REUTERS/Evrard Ngendakumana