South African President Cyril Ramaphosa presents Tanzanian President Samia Suluhu Hassan with the Order of South Africa during her State visit at the Union Buildings in Pretoria, South Africa March 16, 2023. REUTERS/Alet Pretorius 

Tanzanian President Samia Suluhu Hassan and South African President Cyril Ramaphosa address a joint news conference during a state visit at the Union Buildings in Pretoria, South Africa March 16, 2023. REUTERS/Alet Pretorius 

South African President Cyril Ramaphosa talks to Tanzania's President Dr Samia Suluhu Hassan during her State visit at the Union Buildings in Pretoria, South Africa March 16, 2023. REUTERS/Alet Pretorius 

Tanzania's President Dr Samia Suluhu Hassan inspects a guard of honour during her State visit at the Union Buildings in Pretoria, South Africa March 16, 2023. REUTERS/Alet Pretorius 

South African President Cyril Ramaphosa walks with Tanzania's President Dr Samia Suluhu Hassan during her State visit at the Union Buildings in Pretoria, South Africa March 16, 2023. REUTERS/Alet Pretorius 

South African President Cyril Ramaphosa talks to Tanzania's President Dr Samia Suluhu Hassan during her State visit at the Union Buildings in Pretoria, South Africa March 16, 2023. REUTERS/Alet Pretorius 

South African President Cyril Ramaphosa talks to Tanzania's President Dr Samia Suluhu Hassan during her State visit at the Union Buildings in Pretoria, South Africa March 16, 2023. REUTERS/Alet Pretorius 

Tanzanian Bongo Flava artist Rajab Abdul Kahali, commonly referred to by his stage name Harmonize, performs at the Kenyatta International Conference Centre (KICC) in Nairobi, Kenya December 18, 2022. REUTERS/Thomas Mukoya 

Tanzanian Bongo Flava artist Rajab Abdul Kahali performs during the SolFest Class of 2022 concert, at the Kenyatta International Conference Centre (KICC) in Nairobi, Kenya December 18, 2022. REUTERS/Thomas Mukoya 

Tanzanian Bongo Flava artist Rajab Abdul Kahali performs during the SolFest Class of 2022 concert, at the Kenyatta International Conference Centre (KICC) in Nairobi, Kenya December 18, 2022. REUTERS/Thomas Mukoya 

Tanzanian Bongo Flava artist Rajab Abdul Kahali performs during the SolFest Class of 2022 concert, at the Kenyatta International Conference Centre (KICC) in Nairobi, Kenya December 18, 2022. REUTERS/Thomas Mukoya 

Sierra Leone's former President Ernest Bai Koroma and Former Tanzanian President Jakaya Kikwete attend an international observers briefing on Kenya's general election organised by the Independent Electoral and Boundaries Commission (IEBC) in Nairobi, Kenya August 11, 2022. REUTERS/Monicah Mwangi 

Former Tanzanian President Jakaya Kikwete attends an international observers briefing on Kenya's general election organised by the Independent Electoral and Boundaries Commission (IEBC) in Nairobi, Kenya August 11, 2022. REUTERS/Monicah Mwangi 

Former Tanzanian President Jakaya Kikwete attends an international observers briefing on Kenya's general election organised by the Independent Electoral and Boundaries Commission (IEBC) in Nairobi, Kenya August 11, 2022. REUTERS/Monicah Mwangi 

Former Nigerian President Goodluck Jonathan and Former Tanzanian President Jakaya Kikwete listen to an election official during the presidential election at Kibera Primary School, outside the Kibera slums of Nairobi, Kenya August 9, 2022. REUTERS/Thomas Mukoya 

Tanzanian musician Nasibu Abdul Juma Issack, popularly known by his stage name Diamond Platnumz, during his final campaign rally by the Azimio La Umoja (Declaration of Unity) One Kenya Alliance, ahead of the August 9th General election, at the Kasarani Stadium in Nairobi, Kenya August 6, 2022. REUTERS/Monicah Mwangi 

Kenya's opposition leader and presidential candidate Raila Odinga, of the Azimio La Umoja (Declaration of Unity) One Kenya Alliance, dances with Tanzanian musician Nasibu Abdul Juma Issack, popularly known by his stage name Diamond Platnumz, during his final campaign rally ahead of the August 9th General election, at the Kasarani Stadium in Nairobi, Kenya, August 6, 2022. REUTERS/Thomas Mukoya 

Circus performers Tanzanian Warriors practise their performance ahead of the Circus Vegas photocall in Newcastle, Britain, July 15 2022. REUTERS/Lee Smith 

Tanzanian novelist Abdulrazak Gurnah, winner of the 2021 Nobel Prize for Literature, poses at his home in Canterbury, Britain, October 7, 2021. REUTERS/Henry Nicholls 

Tanzanian novelist Abdulrazak Gurnah, winner of the 2021 Nobel Prize for Literature, during an interview with Reuters at his home in Canterbury, Britain, October 7, 2021. REUTERS/Henry Nicholls 

Tanzanian novelist Abdulrazak Gurnah, winner of the 2021 Nobel Prize for Literature, during an interview with Reuters at his home in Canterbury, Britain, October 7, 2021. REUTERS/Henry Nicholls 

Tanzanian novelist Abdulrazak Gurnah, winner of the 2021 Nobel Prize for Literature, during an interview with Reuters at his home in Canterbury, Britain, October 7, 2021. REUTERS/Henry Nicholls 

Tanzanian novelist Abdulrazak Gurnah, winner of the 2021 Nobel Prize for Literature, poses at his home in Canterbury, Britain, October 7, 2021. REUTERS/Henry Nicholls 

Tanzanian novelist Abdulrazak Gurnah, winner of the 2021 Nobel Prize for Literature, during an interview with Reuters at his home in Canterbury, Britain, October 7, 2021. REUTERS/Henry Nicholls 

Tanzanian novelist Abdulrazak Gurnah, winner of the 2021 Nobel Prize for Literature, during an interview with Reuters at his home in Canterbury, Britain, October 7, 2021. REUTERS/Henry Nicholls 

Tanzanian novelist Abdulrazak Gurnah, winner of the 2021 Nobel Prize for Literature, poses at his home in Canterbury, Britain, October 7, 2021. REUTERS/Henry Nicholls 

Tanzanian novelist Abdulrazak Gurnah, winner of the 2021 Nobel Prize for Literature, poses at his home in Canterbury, Britain, October 7, 2021. REUTERS/Henry Nicholls 

Tanzanian novelist Abdulrazak Gurnah, winner of the 2021 Nobel Prize for Literature, poses at his home in Canterbury, Britain, October 7, 2021. REUTERS/Henry Nicholls 

Tanzanian novelist Abdulrazak Gurnah who won the 2021 Noble Prize in Literature, poses for the media at his home in Kent, Britain, October 7, 2021. REUTERS/Henry Nicholls 

Tanzanian novelist Abdulrazak Gurnah who won the 2021 Noble Prize in Literature, poses for the media at his home in Kent, Britain, October 7, 2021. REUTERS/Henry Nicholls 

Tanzanian novelist Abdulrazak Gurnah who won the 2021 Noble Prize in Literature, poses for the media at his home in Kent, Britain, October 7, 2021. REUTERS/Henry Nicholls 

Tanzanian novelist Abdulrazak Gurnah who won the 2021 Noble Prize in Literature, poses for the media at his home in Kent, Britain, October 7, 2021. REUTERS/Henry Nicholls 

Tanzanian novelist Abdulrazak Gurnah who won the 2021 Noble Prize in Literature, poses for the media at his home in Kent, Britain, October 7, 2021. REUTERS/Henry Nicholls 

Tanzanian President Samia Suluhu Hassan arrives for the 76th Session of the U.N. General Assembly in New York City, U.S., September 21, 2021. John Minchillo/Pool via REUTERS 

Tanzanian President Samia Suluhu Hassan arrives at the United Nations headquarters during the 76th Session of the U.N. General Assembly, in New York, U.S. September 20, 2021. John Minchillo/Pool via REUTERS 

Tanzanian President Samia Suluhu Hassan arrives at the United Nations headquarters during the 76th Session of the U.N. General Assembly, in New York, U.S. September 20, 2021. John Minchillo/Pool via REUTERS 

A general view shows Kenyan Members of Parliament and Senators attending an address by Tanzanian President Samia Suluhu Hassan inside the Parliament Buildings in Nairobi, Kenya, May 5, 2021. REUTERS/Monicah Mwangi 

A view shows Kenyan Members of Parliament and Senators attending an address by Tanzanian President Samia Suluhu Hassan inside the Parliament Buildings in Nairobi, Kenya, May 5, 2021. REUTERS/Monicah Mwangi 

Tanzanian President Samia Suluhu Hassan (C) arrives to address a joint Parliament session of Kenyan Members of Parliament and Senators in Nairobi, Kenya, May 5, 2021. REUTERS/Monicah Mwangi 

Tanzanian President Samia Suluhu Hassan (C) arrives to address a joint Parliament session of Kenyan Members of Parliament and Senators in Nairobi, Kenya, May 5, 2021. REUTERS/Monicah Mwangi 

Tanzanian President Samia Suluhu Hassan addresses a joint Parliament session of Kenyan Members of Parliament and Senators in Nairobi, Kenya, May 5, 2021. REUTERS/Monicah Mwangi 

Tanzanian President Samia Suluhu Hassan and Kenya's President Uhuru Kenyatta attand a joint statement at State House, in Nairobi, Kenya, May 4, 2021. REUTERS/Baz Ratner 

Kenya's President Uhuru Kenyatta speaks during a joint statement with Tanzanian President Samia Suluhu Hassan at the State House, in Nairobi, Kenya, May 4, 2021. REUTERS/Baz Ratner 

Tanzanian President Samia Suluhu Hassan speaks during a joint statement with Kenya's President Uhuru Kenyatta at the State House, in Nairobi, Kenya, May 4, 2021. REUTERS/Baz Ratner 

Tanzanian president Samia Suluhu Hassan and Kenya's President Uhuru Kenyatta exit the State House after their meeting, in Nairobi, Kenya, May 4, 2021. REUTERS/Baz Ratner 

Tanzanian president Samia Suluhu Hassan and Kenya's President Uhuru Kenyatta exit the State House after their meeting, in Nairobi, Kenya, May 4, 2021. REUTERS/Baz Ratner 

Tanzanian president Samia Suluhu Hassan is greeted by Kenya's President Uhuru Kenyatta at State House in Nairobi, Kenya, May 4, 2021. REUTERS/Baz Ratner 

Tanzanian President Samia Suluhu Hassan, inspects a guard of honour by the Kenya Defence Forces at State House in Nairobi, Kenya, May 4, 2021. REUTERS/Baz Ratner 

Tanzanian president Samia Suluhu Hassan, inspects a guard of honour by the Kenya Defence Forces at State House in Nairobi, Kenya, May 4, 2021. REUTERS/Baz Ratner 

Tanzanian president Samia Suluhu Hassan, inspects a guard of honour by the Kenya Defence Forces at State House in Nairobi, Kenya, May 4, 2021. REUTERS/Baz Ratner 

Tanzanian investigative journalist Erick Kabendera is escorted as he is freed after pleading guilty to financial crimes, at the Kisutu Residents Magistrate Court in Dar es Salaam, Tanzania February 24, 2020. REUTERS/Emmanuel Herman 

Tanzanian investigative journalist Erick Kabendera meets relatives as he is freed after pleading guilty to financial crimes, at the Kisutu Residents Magistrate Court in Dar es Salaam, Tanzania February 24, 2020. REUTERS/Emmanuel Herman 

Tanzanian investigative journalist Erick Kabendera talks with his lawyer Jebra Kambole at the Kisutu Residents Magistrate Court in Dar es Salaam, Tanzania February 24, 2020. REUTERS/Emmanuel Herman 

Tanzanian investigative journalist Erick Kabendera talks with his lawyer Jebra Kambole at the Kisutu Residents Magistrate Court in Dar es Salaam, Tanzania February 24, 2020. REUTERS/Emmanuel Herman 

Tanzanian investigative journalist Erick Kabendera follows proceedings at the Kisutu Residents Magistrate Court in Dar es Salaam, Tanzania February 24, 2020. REUTERS/Emmanuel Herman 

Tanzanian drone pilot Khadijah Abdulla Ali (R) flies a customized DJI Agras MG-1S drone next to DJI's Enterprise Product Manager Eduardo Rodriguez during a training flight as part of a test in using drone technology in the fight against malaria, near Zanzibar City, on the island of Zanzibar, Tanzania, October 31, 2019. Picture taken October 31, 2019. REUTERS/Baz Ratner 

Tanzanian drone pilot Khadijah Abdulla Ali (R) flies a customized DJI Agras MG-1S drone next to DJI's Enterprise Product Manager Eduardo Rodriguez during a training flight as part of a test in using drone technology in the fight against malaria, near Zanzibar City, on the island of Zanzibar, Tanzania, October 31, 2019. Picture taken October 31, 2019. REUTERS/Baz Ratner 

Tanzanian investigative journalist Erick Kabendera sits inside the Kisutu Residents Magistrate Court in Dar es Salaam, Tanzania August 19, 2019. REUTERS/Emmanuel Herman 

Tanzanian investigative journalist Erick Kabendera arrives at the Kisutu Residents Magistrate Court in Dar es Salaam, Tanzania August 19, 2019. REUTERS/Emmanuel Herman 

Tanzanian investigative journalist Erick Kabendera arrives at the Kisutu Residents Magistrate Court in Dar es Salaam, Tanzania August 19, 2019. REUTERS/Emmanuel Herman