Former Tanzania's President Jakaya Kikwete talks to the President of the National Assembly Pascal Nyabenda as they attend the inauguration ceremony of Burundi's President elect Evariste Ndayishimiye following the sudden death of his predecessor Pierre Nkurunziza, amid the growing threat of the coronavirus disease (COVID-19), at the Ingoma stadium in Gitega, Burundi June 18, 2020. REUTERS/Evrard Ngendakumana

Former Tanzania's President Jakaya Kikwete and Tanzania's Vice President Samia Suluhu Hassan attend the inauguration ceremony of Burundi's President elect Evariste Ndayishimiye following the sudden death of his predecessor Pierre Nkurunziza, amid the growing threat of the coronavirus disease (COVID-19), at the Ingoma stadium in Gitega, Burundi June 18, 2020. REUTERS/Evrard Ngendakumana

Tanzania's President elect John Pombe Magufuli embraces outgoing President Jakaya Kikwete (R) during his inauguration ceremony at the Uhuru Stadium in Dar es Salaam, November 5, 2015. Tanzania's new president Magufuli was sworn in on Thursday, promising to unite the country after a contested vote, create more jobs and drive up economic growth. Looking on are (L-R) Rwanda's President Paul Kagame, Uganda's President Yoweri Museveni and Zimbabwe's President Robert Mugabe. REUTERS/Emmanuel Herman

Rwanda's President Paul Kagame (L) and Uganda's President Yoweri Museveni (2nd R) watch Tanzania's outgoing President Jakaya Kikwete (2nd L) greet Zimbabwe's President Robert Mugabe before the inauguration ceremony of President-elect John Magufuli at the Uhuru Stadium in Dar es Salaam, November 5, 2015. REUTERS/Emmanuel Herman

Outgoing Tanzania's President Jakaya Kikwete address members of the ruling Chama Cha Mapinduzi Party (CCM) at the party's sub-head office on Lumumba road in Dar es Salaam, October 30, 2015. Tanzania's ruling party candidate, John Magufuli, was declared winner on Thursday of a presidential election, after the national electoral body dismissed opposition complaints about the process and a demand for a recount. The election has been the most hotly contested race in the more than half a century of rule by the Chama Cha Mapinduzi Party, which fielded Magufuli, 56, a minister for public works. REUTERS/Emmanuel Herman

Tanzania's President elect John Pombe Magufuli (R) and outgoing President Jakaya Kikwete share a moment before addressing members of the ruling Chama Cha Mapinduzi Party (CCM) at the party's sub-head office on Lumumba road in Dar es Salaam, October 30, 2015. Tanzania's ruling party candidate, John Magufuli, was declared winner on Thursday of a presidential election, after the national electoral body dismissed opposition complaints about the process and a demand for a recount. The election has been the most hotly contested race in the more than half a century of rule by the Chama Cha Mapinduzi Party, which fielded Magufuli, 56, a minister for public works. REUTERS/Emmanuel Herman

Tanzania's President and chairman of the ruling Chama Cha Mapinduzi (CCM) Jakaya Kikwete (R) dances with presidential candidate John Pombe Magufuli during a campaign rally at Jangwani grounds in Dar es Salaam October 23, 2015. Tanzania's ruling party faces its toughest election test on Sunday in more than half of a century in power as it seeks to fend off a presidential bid by a former prime minister who has vowed to create jobs that will help the poor. REUTERS/Sadi Said

Tanzania's President Jakaya Kikwete speaks before attendees during the 70th session of the United Nations General Assembly at the U.N. Headquarters in New York, September 29, 2015. REUTERS/Eduardo Munoz

Tanzania's President Jakaya Kikwete speaks before attendees during the 70th session of the United Nations General Assembly at the U.N. Headquarters in New York, September 29, 2015. REUTERS/Eduardo Munoz

Tanzania's President Jakaya Kikwete arrives to speak before attendees during the 70th session of the United Nations General Assembly at the U.N. Headquarters in New York, September 29, 2015. REUTERS/Eduardo Munoz

President Jakaya Mrisho Kikwete of Tanzania addresses a plenary meeting of the United Nations Sustainable Development Summit 2015 at the United Nations headquarters in Manhattan, New York September 26, 2015. More than 150 world leaders are expected to attend the three day summit to formally adopt an ambitious new sustainable development agenda, according to a U.N. press statement. REUTERS/Darren Ornitz

President Jakaya Mrisho Kikwete of Tanzania addresses a plenary meeting of the United Nations Sustainable Development Summit 2015 at the United Nations headquarters in Manhattan, New York September 26, 2015. More than 150 world leaders are expected to attend the three day summit to formally adopt an ambitious new sustainable development agenda, according to a U.N. press statement. REUTERS/Darren Ornitz

Indian Prime Minister Narendra Modi (R) gestures towards Tanzanian President Jakaya Kikwete (C) as his wife Salma Kikwete (C) looks on during Kikwete’s ceremonial reception at the forecourt of India's Rashtrapati Bhavan presidential palace in New Delhi, India, June 19, 2015. Kikwete is on a five-day state visit to India. REUTERS/Adnan Abidi

Tanzanian President Jakaya Kikwete (R) shakes hands with his Indian counterpart Pranab Mukherjee as his wife Salma Kikwete (C) looks on during Kikwete’s ceremonial reception at the forecourt of India's Rashtrapati Bhavan presidential palace in New Delhi, India, June 19, 2015. Kikwete is on a five-day state visit to India. REUTERS/Adnan Abidi

Tanzanian President Jakaya Kikwete inspects a guard of honour during his ceremonial reception at the forecourt of India's Rashtrapati Bhavan presidential palace in New Delhi, India, June 19, 2015. Kikwete is on a five-day state visit to India. REUTERS/Adnan Abidi

Tanzanian President Jakaya Kikwete inspects a guard of honour during his ceremonial reception at the forecourt of India's Rashtrapati Bhavan presidential palace in New Delhi, India, June 19, 2015. Kikwete is on a five-day state visit to India. REUTERS/Adnan Abidi

Tanzania's President Jakaya Kikwete attends the 24th Ordinary session of the Assembly of Heads of State and Government of the African Union (AU) at the African Union headquarters in Ethiopia's capital Addis Ababa, January 31, 2015. REUTERS/Tiksa Negeri (ETHIOPIA - Tags: SOCIETY POLITICS)

French President Francois Hollande (R) welcomes Tanzania's President Jakaya Kikwete at the Elysee Palace in Paris, January 28, 2015. REUTERS/Philippe Wojazer (FRANCE - Tags: POLITICS)

French President Francois Hollande (L) welcomes Tanzania's President Jakaya Kikwete at the Elysee Palace in Paris, January 28, 2015. REUTERS/Philippe Wojazer (FRANCE - Tags: POLITICS)

French President Francois Hollande (L) welcomes Tanzania's President Jakaya Kikwete at the Elysee Palace in Paris, January 28, 2015. REUTERS/Philippe Wojazer (FRANCE - Tags: POLITICS)

Tanzania's President Jakaya Kikwete addresses the audience of the Global Alliance for Vaccines and Immunisation (GAVI) conference in Berlin January 27, 2015. REUTERS/Fabrizio Bensch (GERMANY - Tags: POLITICS HEALTH)

Tanzania's President Jakaya Kikwete walks onto the stage to address the audience of the Global Alliance for Vaccines and Immunisation (GAVI) conference in Berlin January 27, 2015. REUTERS/Fabrizio Bensch (GERMANY - Tags: POLITICS HEALTH)

Billionaire philanthropist Bill Gates (L-R), Norwegian Prime Minister Erna Solberg, Tanzania's President Jakaya Kikwete, German Chancellor Angela Merkel, President of Mali Ibrahim Boubacar Keita arrive to the Global Alliance for Vaccines and Immunisation (GAVI) conference in Berlin January 27, 2015. REUTERS/Fabrizio Bensch (GERMANY - Tags: POLITICS HEALTH)

Tanzania's President Jakaya Kikwete (L) chats with his Vietnamese counterpart Truong Tan Sang before their meeting at the Presidential Palace in Hanoi October 27, 2014. Kikwete is in Hanoi on his state visit to Vietnam from October 26 to 28. REUTERS/Kham (VIETNAM - Tags: POLITICS)

Tanzania's President Jakaya Kikwete (L) poses for a photo with his Vietnamese counterpart Truong Tan Sang under a statue of late Vietnamese revolutionary leader Ho Chi Minh at the Presidential Palace in Hanoi October 27, 2014. Kikwete is in Hanoi on his state visit to Vietnam from October 26 to 28. REUTERS/Kham (VIETNAM - Tags: POLITICS)

Tanzania's President Jakaya Kikwete (R) reviews the guard of honour with his Vietnamese counterpart Truong Tan Sang during a welcoming ceremony at the Presidential Palace in Hanoi October 27, 2014. Kikwete is in Hanoi on his state visit to Vietnam from October 26 to 28. REUTERS/Kham (VIETNAM - Tags: POLITICS)

Tanzania's President Jakaya Kikwete (R) reviews the guard of honour with his Vietnamese counterpart Truong Tan Sang during a welcoming ceremony at the Presidential Palace in Hanoi October 27, 2014. Kikwete is in Hanoi on his state visit to Vietnam from October 26 to 28. REUTERS/Kham (VIETNAM - Tags: POLITICS)

Tanzania's President Jakaya Kikwete (5th R) talks with Chinese President Xi Jinping (4th L) during a meeting at the Great Hall of the People in Beijing October 24, 2014. Tanzania and China have signed investment deals worth more than $1.7 billion, including one to build a satellite city to ease congestion in the commercial capital Dar es Salaam - deepening Beijing's ties with East Africa. REUTERS/Takaki Yajima/Pool (CHINA - Tags: POLITICS)

Tanzania's President Jakaya Kikwete (centre L) and Chinese President Xi Jinping (centre R) attend a signing ceremony at the Great Hall of the People in Beijing October 24, 2014. REUTERS/Takaki Yajima/Pool (CHINA - Tags: POLITICS)

Tanzania's President Jakaya Kikwete (rear L) and Chinese President Xi Jinping (rear R) attend a signing ceremony at the Great Hall of the People in Beijing October 24, 2014. REUTERS/Takaki Yajima/Pool (CHINA - Tags: POLITICS)

Tanzania's President Jakaya Kikwete (L) shakes hands with Chinese President Xi Jinping during a signing ceremony at the Great Hall of the People in Beijing October 24, 2014. REUTERS/Takaki Yajima/Pool (CHINA - Tags: POLITICS)

Tanzania's President Jakaya Kikwete (L) shakes hands with Chinese President Xi Jinping during a signing ceremony at the Great Hall of the People in Beijing October 24, 2014. REUTERS/Takaki Yajima/Pool (CHINA - Tags: POLITICS)

Tanzania's President Jakaya Kikwete talks with Chinese President Xi Jinping (not in picture) during a meeting at the Great Hall of the People in Beijing October 24, 2014. REUTERS/Takaki Yajima/Pool (CHINA - Tags: POLITICS)

Chinese President Xi Jinping (L) talks with Tanzania's President Jakaya Kikwete during a meeting at the Great Hall of the People in Beijing October 24, 2014. REUTERS/Takaki Yajima/Pool (CHINA - Tags: POLITICS)

Chinese President Xi Jinping talks with Tanzania's President Jakaya Kikwete (not in picture) during a meeting at the Great Hall of the People in Beijing October 24, 2014. REUTERS/Takaki Yajima/Pool (CHINA - Tags: POLITICS)

Soldiers from the honour guards participate in a welcoming ceremony for Tanzania's President Jakaya Kikwete outside the Great Hall of the People, on a hazy day in Beijing, October 24, 2014. Beijing and eight of its neighboring cities were among the 10 Chinese cities with the worst air quality in the third quarter of 2014, though they have seen improvement in the past three months, the Xinhua News Agency citing the ministry of environmental protection said on Tuesday. REUTERS/Jason Lee (CHINA - Tags: ENVIRONMENT POLITICS MILITARY)

Tanzania's President Jakaya Kikwete(2nd L) talks with Chinese Premier Li Keqiang (3rd R) during a meeting at the Great Hall of the People in Beijing October 24, 2014. REUTERS/Kyodo News/Takaki Yajima/Pool (CHINA - Tags: POLITICS)

Tanzania's President Jakaya Kikwete (L) and China's President Xi Jinping attend a welcoming ceremony outside the Great Hall of the People, in Beijing, October 24, 2014. REUTERS/Jason Lee (CHINA - Tags: POLITICS BUSINESS)

Tanzania's President Jakaya Kikwete (R) and China's President Xi Jinping inspect honour guards during a welcoming ceremony outside the Great Hall of the People, on a heavily hazy day in Beijing, October 24, 2014. REUTERS/Jason Lee (CHINA - Tags: POLITICS BUSINESS)

Tanzania's President Jakaya Kikwete (R) and China's President Xi Jinping inspect honour guards during a welcoming ceremony outside the Great Hall of the People, on a heavily hazy day in Beijing, October 24, 2014. REUTERS/Jason Lee (CHINA - Tags: POLITICS ENVIRONMENT BUSINESS)

Tanzania's President Jakaya Kikwete (L) talks with Chinese Premier Li Keqiang (2nd R) during a meeting at the Great Hall of the People in Beijing October 24, 2014. REUTERS/Kyodo News/Takaki Yajima/Pool (CHINA - Tags: POLITICS)

Tanzania's President Jakaya Kikwete (L) talks with Chinese Premier Li Keqiang (R) during a meeting at the Great Hall of the People in Beijing October 24, 2014. REUTERS/Kyodo News/Takaki Yajima/Pool (CHINA - Tags: POLITICS)

Tanzania's President Jakaya Kikwete (L) shakes hands with Chinese Premier Li Keqiang before a meeting at the Great Hall of the People in Beijing October 24, 2014. REUTERS/Kyodo News/Takaki Yajima/Pool (CHINA - Tags: POLITICS)

Tanzania's President Jakaya Kikwete (L) shakes hands with Chinese Premier Li Keqiang before a meeting at the Great Hall of the People in Beijing October 24, 2014. REUTERS/Kyodo News/Takaki Yajima/Pool (CHINA - Tags: POLITICS)

Tanzania's President Jakaya Kikwete (L) shakes hands with Chinese Premier Li Keqiang before a meeting at the Great Hall of the People in Beijing October 24, 2014. REUTERS/Kyodo News/Takaki Yajima/Pool (CHINA - Tags: POLITICS)

Jakaya Mrisho Kikwete, President of Tanzania, addresses the 69th United Nations General Assembly at the U.N. headquarters in New York September 25, 2014. REUTERS/Lucas Jackson (UNITED STATES - Tags: POLITICS)

Jakaya Mrisho Kikwete, President of Tanzania, addresses the 69th United Nations General Assembly at the U.N. headquarters in New York September 25, 2014. REUTERS/Lucas Jackson (UNITED STATES - Tags: POLITICS)

Tanzania's President Jakaya Mrisho Kikwete hands his mobile phone to an aide as he arrives to attends the Africa Union Peace and Security Council Summit on Terrorism at the Kenyatta International Convention Centre in Nairobi, September 2, 2014. African leaders proposed on Tuesday creating a special fund to combat Islamist militant groups growing in strength from Kenya to Nigeria. African Union (AU) states announced the idea after Nairobi talks on a problem highlighted on Tuesday by capture of a town in north-eastern Nigeria by Boko Haram militants. Fighting killed scores of people, according to security forces, and sent at least 5,000 fleeing. REUTERS/Noor Khamis (KENYA - Tags: POLITICS CIVIL UNREST SOCIETY)

Uganda's President Yoweri Museveni (L) and his Tanzanian counterpart Jakaya Mrisho Kikwete attend the Africa Union Peace and Security Council Summit on Terrorism at the Kenyatta International Convention Centre in Nairobi, September 2, 2014. African leaders proposed on Tuesday creating a special fund to combat Islamist militant groups growing in strength from Kenya to Nigeria. African Union (AU) states announced the idea after Nairobi talks on a problem highlighted on Tuesday by capture of a town in north-eastern Nigeria by Boko Haram militants. Fighting killed scores of people, according to security forces, and sent at least 5,000 fleeing. REUTERS/Noor Khamis (KENYA - Tags: POLITICS CIVIL UNREST SOCIETY)

U.S. President Barack Obama (L) greets Tanzania's President Jakaya Mrisho Kikwete (C) as they gather for a plenary session on 'Governing for the Next Generation' at the U.S.-Africa Leaders Summit at the U.S. State Department in Washington August 6, 2014. REUTERS/Jonathan Ernst (UNITED STATES - Tags: POLITICS)

Tanzania's President Jakaya Mrisho Kikwete takes his seat for a plenary session on 'Governing for the Next Generation' at the U.S.-Africa Leaders Summit at the U.S. State Department in Washington August 6, 2014. REUTERS/Jonathan Ernst (UNITED STATES - Tags: POLITICS)

U.S. President Barack Obama talks with Benin President Yayi Boni (C) and Tanzania President Jakaya Mrisho Kikwete (3rd R) as they attend the third Leaders Session of the U.S.-Africa Leaders Summit entitled, "Governing the Next Generation" while at the State Department in Washington, August 6, 2014. At lower right is African Union Commission Chair Nkosazana Clarice Dlamini-Zuma. REUTERS/Larry Downing (UNITED STATES - Tags: POLITICS)

White House aide Marvin Nicholson (top L) hands a note to U.S. President Barack Obama as he takes his seat for a plenary session on 'Governing for the Next Generation' at the U.S.-Africa Leaders Summit at the U.S. State Department in Washington August 6, 2014. Also pictured is Tanzania's President Jakaya Mrisho Kikwete (C). REUTERS/Jonathan Ernst (UNITED STATES - Tags: POLITICS)

U.S. President Barack Obama (L) talks with Tanzania President Jakaya Mrisho Kikwete as they attend the third Leaders Session of the U.S.-Africa Leaders Summit entitled, "Governing the Next Generation" while at the State Department in Washington, August 6, 2014. REUTERS/Larry Downing (UNITED STATES - Tags: POLITICS)

U.S. President Barack Obama (from L) smiles with Tanzania's President Jakaya Mrisho Kikwete as they gather for a plenary session on 'Governing for the Next Generation' at the U.S.-Africa Leaders Summit at the U.S. State Department in Washington August 6, 2014. REUTERS/Jonathan Ernst (UNITED STATES - Tags: POLITICS)

U.S. President Barack Obama (L) talks with Benin President Yayi Boni as they attend the third Leaders Session of the U.S.-Africa Leaders Summit entitled, "Governing the Next Generation" while at the State Department in Washington, August 6, 2014. At lower right is Tanzania President Jakaya Mrisho Kikwete. REUTERS/Larry Downing (UNITED STATES - Tags: POLITICS)

Tanzania's President Jakaya Mrisho Kikwete (C) smiles after he and fellow leaders gathered for a family photo for the U.S.-Africa Leaders Summit at the U.S. State Department in Washington August 6, 2014. Also pictured is Togo's President Faure Essozimna Gnassingbe (top R). REUTERS/Jonathan Ernst (UNITED STATES - Tags: POLITICS)

Tanzania's President Jakaya Mrisho Kikwete (L) and Tunisia's President Moncef Marzouki participate in a panel discussion on the future of Africa during the U.S.-Africa Business Forum in Washington August 5, 2014. The forum is part of the U.S.-Africa Leaders Summit bringing nearly fifty African heads of state together for three days of meetings and events. REUTERS/Jonathan Ernst (UNITED STATES - Tags: POLITICS BUSINESS)

Tanzania's President Jakaya Mrisho Kikwete (L) and Tunisia's President Moncef Marzouki participate in a panel discussion on the future of Africa during the U.S.-Africa Business Forum in Washington August 5, 2014. The forum is part of the U.S.-Africa Leaders Summit bringing nearly fifty African heads of state together for three days of meetings and events. REUTERS/Jonathan Ernst (UNITED STATES - Tags: POLITICS BUSINESS)

Television presenter Charlie Rose (L) asks a question of Tanzania's President Jakaya Mrisho Kikwete in a panel discussion on the future of Africa during the U.S.-Africa Business Forum in Washington August 5, 2014. The forum is part of the U.S.-Africa Leaders Summit bringing nearly fifty African heads of state together for three days of meetings and events. REUTERS/Jonathan Ernst (UNITED STATES - Tags: POLITICS BUSINESS)