Immigration workers wear protective masks at a departure port at Robert Mugabe International airport in Harare, Zimbabwe, March 11, 2020. Picture taken March 11, 2020. REUTERS/Philimon Bulawayo

Immigration workers wear protective masks at a departure port at Robert Mugabe International airport in Harare, Zimbabwe, March 11, 2020. Picture taken March 11, 2020. REUTERS/Philimon Bulawayo

Immigration workers wear protective masks at a departure port at Robert Mugabe International airport in Harare, Zimbabwe, March 11, 2020. Picture taken March 11, 2020. REUTERS/Philimon Bulawayo

Mourners arrive at Rufaro stadium, in Mbare township where the body of Zimbabwe's founder Robert Mugabe will lie in state, Harare, Zimbabwe, September 12, 2019. REUTERS/Siphiwe Sibeko/File Photo SEARCH "GLOBAL POY" FOR THIS STORY. SEARCH "REUTERS POY" FOR ALL BEST OF 2019 PACKAGES. TPX IMAGES OF THE DAY.

Mourners gather beside the coffin of former Zimbabwean President Robert Mugabe at his burial site in Kutama, Zimbabwe, September 28, 2019. REUTERS/Philimon Bulawayo

The coffin of former Zimbabwean President Robert Mugabe is seen at his burial site in Kutama, Zimbabwe, September 28, 2019. REUTERS/Philimon Bulawayo

The coffin of former Zimbabwean President Robert Mugabe is seen at his burial site in Kutama, Zimbabwe, September 28, 2019. REUTERS/Philimon Bulawayo

Grace Mugabe, widow of former Zimbabwean President Robert Mugabe stands behind a wreath at his burial site in Kutama, Zimbabwe, September 28, 2019. REUTERS/Philimon Bulawayo

Grace Mugabe, widow of former Zimbabwean President Robert Mugabe places a wreath at his burial site in Kutama, Zimbabwe, September 28, 2019. REUTERS/Philimon Bulawayo

Soldiers stand beside a picture of former Zimbabwean President Robert Mugabe during a church service before his burial at his rural village in Kutama, Zimbabwe, September 28, 2019. REUTERS/Philimon Bulawayo

Grace Mugabe, widow of former Zimbabwean President Robert Mugabe, attends a church service before his burial at his rural village in Kutama, Zimbabwe, September 28, 2019. REUTERS/Philimon Bulawayo

Grace Mugabe, widow of former Zimbabwean President Robert Mugabe, attends a church service before his burial at his rural village in Kutama, Zimbabwe, September 28, 2019. REUTERS/Philimon Bulawayo

A soldier stands beside a picture of former Zimbabwean President Robert Mugabe during a church service at his rural village in Kutama, Zimbabwe, September 28, 2019. REUTERS/Philimon Bulawayo

A coffin containing the body of former Zimbabwean President Robert Mugabe arrives at his rural village in Kutama, Zimbabwe, September 28, 2019. REUTERS/Philimon Bulawayo

A coffin containing the body of former Zimbabwean President Robert Mugabe arrives at his rural village in Kutama, Zimbabwe, September 28, 2019. REUTERS/Philimon Bulawayo

A soldier stands over the coffin of former Zimbabwean President Robert Mugabe during a church service at his rural village in Kutama, Zimbabwe, September 28, 2019. REUTERS/Philimon Bulawayo

A coffin containing the body of former Zimbabwean President Robert Mugabe arrives at his rural village in Kutama, Zimbabwe, September 28, 2019. REUTERS/Philimon Bulawayo

Mourners wait to pay their respects outside former Zimbabwean President Robert Mugabe's home at his rural village in Kutama, Zimbabwe, September 28, 2019. REUTERS/Philimon Bulawayo

Mourners wait to pay their respects outside former Zimbabwean President Robert Mugabe's home at his rural village in Kutama, Zimbabwe, September 28, 2019. REUTERS/Philimon Bulawayo

Mourners pay their respects as the body of former Zimbabwean President Robert Mugabe arrives in Murombedzi, near his rural home village of Kutama, Zimbabwe, September 16, 2019.REUTERS/Philimon Bulawayo

Mourners pay their respects as the body of former Zimbabwean President Robert Mugabe arrives in Murombedzi, near his rural home village of Kutama, Zimbabwe, September 16, 2019.REUTERS/Philimon Bulawayo

Mourners wait to pay their respects as the body of former Zimbabwean President Robert Mugabe arrives in Murombedzi, near his rural home village of Kutama, Zimbabwe, September 16, 2019.REUTERS/Philimon Bulawayo

A mourner holds a poster as the body of former Zimbabwean President Robert Mugabe arrives in Murombedzi, near his rural home village of Kutama Zimbabwe, September 16, 2019.REUTERS/Philimon Bulawayo

The body of former Zimbabwean President Robert Mugabe arrives at his rural home in Kutama, Zimbabwe, September 16, 2019.REUTERS/Philimon Bulawayo

The body of former Zimbabwean President Robert Mugabe arrives at his rural home in Kutama, Zimbabwe, September 16, 2019.REUTERS/Philimon Bulawayo

A helicopter carrying the body of former Zimbabwean President Robert Mugabe arrives at his rural home in Kutama, Zimbabwe, September 16, 2019. REUTERS/Philimon Bulawayo

Grace Mugabe, widow of former Zimbabwean President Robert Mugabe watches the arrival of the coffin in Kutama, Zimbabwe, September 16, 2019. REUTERS/Philimon Bulawayo

The body of former Zimbabwean President Robert Mugabe arrives at his rural home in Kutama, Zimbabwe, September 16, 2019. REUTERS/Philimon Bulawayo

Robert Mugabe Junior watches as the body of his father, former Zimbabwean President Robert Mugabe arrives at his rural home in Kutama, Zimbabwe, September 16, 2019.REUTERS/Philimon Bulawayo

The body of former Zimbabwean President Robert Mugabe arrives at his rural home in Kutama, Zimbabwe, September 16, 2019.REUTERS/Philimon Bulawayo

A woman wears a head scarf bearing the image of Robert Mugabe at his rural hometown in Kutama, Zimbabwe, September 15,2019. REUTERS/Philimon Bulawayo

Mourners sing and dance at former Zimbabwean President Robert Mugabe's rural hometown in Kutama, Zimbabwe, September 15,2019. REUTERS/Philimon Bulawayo

Mourners sing and dance at former Zimbabwean President Robert Mugabe's rural hometown in Kutama, Zimbabwe, September 15,2019. REUTERS/Philimon Bulawayo

A mourner picks a placard at former Zimbabwean President Robert Mugabe's rural hometown in Kutama, Zimbabwe, September 15,2019. REUTERS/Philimon Bulawayo

A mourner dances at former Zimbabwean President Robert Mugabe's rural hometown in Kutama, Zimbabwe, September 15, 2019. REUTERS/Philimon Bulawayo

Mourners dance at former Zimbabwean President Robert Mugabe's rural hometown in Kutama, Zimbabwe, September 15,2019. REUTERS/Philimon Bulawayo

Mourners hold placard at former Zimbabwean President Robert Mugabe's rural home in Kutama, Zimbabwe, September 15, 2019.REUTERS/Philimon Bulawayo

Mourners hold a poster during the state funeral of Zimbabwe's longtime ruler Robert Mugabe at a national sports stadium in Harare, Zimbabwe, September 14, 2019. REUTERS/Siphiwe Sibeko

A member of the military gestures as mourners arrive to attend a state funeral for Zimbabwe's longtime ruler Robert Mugabe at a national sports stadium in Harare, Zimbabwe, September 14, 2019. REUTERS/Siphiwe Sibeko

Former first lady of Zimbabwe, Grace Mugabe pays her last respects during a state funeral of her husband and Zimbabwe's longtime ruler Robert Mugabe, at the national sports stadium in Harare, Zimbabwe, September 14, 2019. REUTERS/Siphiwe Sibeko TPX IMAGES OF THE DAY

Zimbabwean President Emmerson Mnangagwa, pays his last respects during a state funeral of Zimbabwe's longtime ruler Robert Mugabe, at the national sports stadium in Harare, Zimbabwe, September 14, 2019. REUTERS/Siphiwe Sibeko

Former first lady of Zimbabwe, Grace Mugabe pays her last respects during a state funeral of her husband and Zimbabwe's longtime ruler Robert Mugabe, at the national sports stadium in Harare, Zimbabwe, September 14, 2019. REUTERS/Siphiwe Sibeko

President of South Africa, Cyril Ramaphosa reacts after speaking at a state funeral of Zimbabwe's longtime ruler Robert Mugabe, at the national sports stadium in Harare, Zimbabwe, September 14, 2019. REUTERS/Siphiwe Sibeko

Zimbabwean President Emmerson Mnangagwa, speaks during a state funeral of Zimbabwe's longtime ruler Robert Mugabe, at the national sports stadium in Harare, Zimbabwe, September 14, 2019. REUTERS/Siphiwe Sibeko

President of South Africa, Cyril Ramaphosa reacts after speaking at a state funeral of Zimbabwe's longtime ruler Robert Mugabe, at the national sports stadium in Harare, Zimbabwe, September 14, 2019. REUTERS/Siphiwe Sibeko

Former first lady of Zimbabwe, Grace Mugabe walks to pay her last respects during a state funeral of her husband and Zimbabwe's longtime ruler Robert Mugabe, at the national sports stadium in Harare, Zimbabwe, September 14, 2019. REUTERS/Siphiwe Sibeko

Kenyan President Uhuru Kenyatta, speaks during a state funeral of Zimbabwe's longtime ruler Robert Mugabe, at the national sports stadium in Harare, Zimbabwe, September 14, 2019. REUTERS/Siphiwe Sibeko

President of South Africa, Cyril Ramaphosa speaks during a state funeral of Zimbabwe's longtime ruler Robert Mugabe, at the national sports stadium in Harare, Zimbabwe, September 14, 2019. REUTERS/Siphiwe Sibeko

The coffin of Zimbabwe's founder and longtime ruler Robert Mugabe leaves the national sports stadium after his state funeral in Harare, Zimbabwe, September 14, 2019. REUTERS/Siphiwe Sibeko

Mourners dance as they pay their last respects to Zimbabwe's longtime ruler Robert Mugabe during his state funeral at the national sports stadium in Harare, Zimbabwe, September 14, 2019. REUTERS/Siphiwe Sibeko

Former president of Zambia, Kenneth Kaunda, pays his last respects to Zimbabwe's longtime ruler Robert Mugabe during his state funeral at the national sports stadium in Harare, Zimbabwe, September 14, 2019. REUTERS/Siphiwe Sibeko

A mourner is carried on a stretcher during the state funeral of the country's founder and longtime ruler Robert Mugabe, at the national sports stadium in Harare, Zimbabwe, September 14, 2019. Picture taken through pillar. REUTERS/Siphiwe Sibeko

Zimbabwean President Emmerson Mnangagwa looks on next to his wife Auxillia Mnangagwa during the state funeral of the country's founder and longtime ruler Robert Mugabe, at the national sports stadium in Harare, Zimbabwe, September 14, 2019. REUTERS/Siphiwe Sibeko

Zimbabwean President Emmerson Mnangagwa welcomes former president of South Africa, Jacob Zuma, ahead of the state funeral of Zimbabwe's founder and longtime ruler Robert Mugabe, at the national sports stadium in Harare, Zimbabwe, September 14, 2019. REUTERS/Siphiwe Sibeko

Zimbabwean President Emmerson Mnangagwa looks on during the state funeral of the country's founder and longtime ruler Robert Mugabe, at the national sports stadium in Harare, Zimbabwe, September 14, 2019. REUTERS/Siphiwe Sibeko

Military members stand guard before the arrival of Zimbabwe's founder and longtime ruler Robert Mugabe's coffin at the national sports stadium for a state funeral in Harare, Zimbabwe, September 14, 2019. REUTERS/Siphiwe Sibeko

The body of Zimbabwe's founder and longtime ruler Robert Mugabe is brought to the national sports stadium for a state funeral in Harare, Zimbabwe, September 14, 2019. REUTERS/Siphiwe Sibeko

A general view of the National Heroes Acre where former Zimbabwean President Robert Mugabe will eventually be buried in Harare, Zimbabwe, September 14, 2019. REUTERS/Philimon Bulawayo

A woman washes her pots and plates as villagers await the arrival of former Zimbabwean President Robert Mugabe's body at his rural home in Kutama, Zimbabwe, September 14, 2019.REUTERS/Philimon Bulawayo