Equatorial Guinean President Teodoro Obiang Nguema Mbasogo (L) receives military honours upon his arrival to the Viru Viru airport, ahead of his attendance at the Gas Exporting Countries Forum Summit, in Santa Cruz, Bolivia, November 22, 2017. REUTERS/David Mercado 

Equatorial Guinean President Teodoro Obiang Nguema Mbasogo (C) and Foreign Minister Fernando Huanacuni attend a ceremony at the Viru Viru airport, ahead of the Gas Exporting Countries Forum Summit, in Santa Cruz, Bolivia, November 22, 2017. REUTERS/David Mercado 

Equatorial Guinean President Teodoro Obiang Nguema Mbasogo is seen at his arrival to the Viru Viru airport, ahead of his attendance at the Gas Exporting Countries Forum Summit, in Santa Cruz, Bolivia, November 22, 2017. REUTERS/David Mercado 

Equatorial Guinean President Teodoro Obiang Nguema Mbasogo speaks at his arrival to the Viru Viru airport, ahead of his attendance at the Gas Exporting Countries Forum Summit, in Santa Cruz, Bolivia, November 22, 2017. REUTERS/David Mercado 

Equatorial Guinean President Teodoro Obiang Nguema Mbasogo receives military honors upon his arrival at Viru Viru airport to participate in the Gas Exporting Countries Forum Summit in Santa Cruz, Bolivia, November 22, 2017. REUTERS/David Mercado 

Equatorial Guinean President Teodoro Obiang Nguema Mbasogo and his wife Constancia are seen on their arrival at Viru Viru airport to participate in the Gas Exporting Countries Forum Summit in Santa Cruz, Bolivia, November 22, 2017. REUTERS/David Mercado 

A military band perform at the Viru Viru airport at the arrival ceremony of Equatorial Guinean President Teodoro Obiang Nguema Mbasogo (not pictured) to the Gas Exporting Countries Forum Summit in Santa Cruz, Bolivia, November 22, 2017. REUTERS/David Mercado 

President of Equatorial Guinea Teodoro Obiang Nguema Mbasogo signs a condolence book as he arrives to pay tribute to Cuba's late President Fidel Castro at the Jose Marti Memorial in Revolution Square in Havana, Cuba, November 29, 2016. REUTERS/Carlos Garcia Rawlins

President of Equatorial Guinea Teodoro Obiang Nguema Mbasogo (wearing blue tie) arrives to pay tribute to Cuba's late President Fidel Castro at the Jose Marti Memorial in Revolution Square in Havana, Cuba, November 29, 2016. REUTERS/Carlos Garcia Rawlins

President of Equatorial Guinea Teodoro Obiang Nguema Mbasogo (wearing blue tie) places a wreath as he arrives to pay tribute to Cuba's late President Fidel Castro at the Jose Marti Memorial in Revolution Square in Havana, Cuba, November 29, 2016. REUTERS/Carlos Garcia Rawlins

President of Equatorial Guinea Teodoro Obiang Nguema Mbasogo (wearing blue tie) arrives to pay tribute to Cuba's late President Fidel Castro at the Jose Marti Memorial in Revolution Square in Havana, Cuba, November 29, 2016. REUTERS/Carlos Garcia Rawlins

President of Equatorial Guinea Teodoro Obiang Nguema Mbasogo (wearing blue tie) arrives to pay tribute to Cuba's late President Fidel Castro at the Jose Marti Memorial in Revolution Square in Havana, Cuba, November 29, 2016. REUTERS/Carlos Garcia Rawlins

A crocodile is seen for sale at a food market in Bata, February 6, 2015. REUTERS/Amr Abdallah Dalsh (EQUATORIAL GUINEA - Tags: ANIMALS SOCIETY) 

Boys drink water from a tap in Bata, February 6, 2015. REUTERS/Amr Abdallah Dalsh (EQUATORIAL GUINEA - Tags: SOCIETY) 

A police helicopter hovers over Equitorial Guinea fans as they throw objects during the 2015 African Cup of Nations semi-final soccer match against Ghana in Malabo, February 5, 2015. REUTERS/Amr Abdallah Dalsh (EQUATORIAL GUINEA - Tags: SPORT SOCCER TPX IMAGES OF THE DAY) 

Mali's Seydou Keita (L) challenges Guinea's Boubacar Fofana during their 2015 African Cup of Nations Group D soccer match in Mongomo January 28, 2015. REUTERS/Mike Hutchings (EQUATORIAL GUINEA - Tags: SPORT SOCCER) 

A Mali supporter painted in the colours of the country's national flag cheers as the team arrives to warm up before their 2015 African Cup of Nations Group D soccer match against Guinea in Mongomo January 28, 2015. REUTERS/Mike Hutchings (EQUATORIAL GUINEA - Tags: SPORT SOCCER TPX IMAGES OF THE DAY) 

Equatorial Guinea's Daniel Vazquez Evuy challenges Gabon's Levy Madinda (R) during their Group A soccer match of the 2015 African Cup of Nations in Bata January 25, 2015. REUTERS/Mike Hutchings (EQUATORIAL GUINEA - Tags: SPORT SOCCER TPX IMAGES OF THE DAY) 

A boy plays with a soccer ball on the beach on the Atlantic Ocean coast in Bata in the Rio Muni region January 23, 2015. The African Nations Cup is being hosted by Equatorial Guinea from January 17 to February 8. REUTERS/Amr Abdallah Dalsh (EQUATORIAL GUINEA - Tags: SPORT SOCCER SOCIETY) 

Ghana fans cheer during the team's 2015 African Cup of Nations Group C soccer match against Algeria in Mongomo January 23, 2015. REUTERS/Mike Hutchings (EQUATORIAL GUINEA - Tags: SPORT SOCCER TPX IMAGES OF THE DAY) 

Serey Die of Ivory Coast reacts as he is challenged by Guinea's Kevin Constant during their Group D soccer match of the 2015 African Cup of Nations in Malabo January 20, 2015. REUTERS/Amr Abdallah Dalsh (EQUATORIAL GUINEA - Tags: SPORT SOCCER TPX IMAGES OF THE DAY) 

A health worker checks the temperature of a fan of Guinea at Malabo Stadium, ahead of their Group D soccer match against Ivory Coast in the African Cup of Nations, in Malabo January 20, 2015. REUTERS/Amr Abdallah Dalsh (EQUATORIAL GUINEA - Tags: SPORT SOCCER HEALTH) 

Fishermen repair a boat on the beach near the Freedom Tower in Bata January 19, 2015. The African Nations Cup is being hosted by Equatorial Guinea from January 17 to February 8. REUTERS/Amr Abdallah Dalsh (EQUATORIAL GUINEA - Tags: SOCIETY ENVIRONMENT TRAVEL) 

Boys play soccer on a beach promenade on the Atlantic Ocean coast in Bata in the Rio Muni region January 18, 2015. The African Nations Cup is being hosted by Equatorial Guinea from January 17 to February 8. REUTERS/Amr Abdallah Dalsh (EQUATORIAL GUINEA - Tags: SPORT SOCCER SOCIETY) 

Women walk past a stall selling the carcasses of wild animals outside Bata January 18, 2015. The sale of bushmeat for human consumption is common in West Africa and Central Africa. REUTERS/Mike Hutchings (EQUATORIAL GUINEA - Tags: ANIMALS FOOD SOCIETY) 

A man attends Friday prayers outside a mosque in the Bisa area of Bata February 3, 2012. REUTERS/Amr Abdallah Dalsh (EQUATORIAL GUINEA - Tags: RELIGION) 

A boy carries his sister along a street after classes in Bata February 3, 2012. REUTERS/Amr Abdallah Dalsh (EQUATORIAL GUINEA - Tags: EDUCATION SOCIETY) 

A monkey, which is known as "Mono" in Equatorial Guinea, is seen on a farm beside the Atlantic beach in Bata January 31, 2012. REUTERS/Amr Abdallah Dalsh (EQUATORIAL GUINEA - Tags: ANIMALS SOCIETY) 

A monkey, which is known as "Mono" in Equatorial Guinea, sticks out its tongue on a farm beside the Atlantic beach in Bata January 31, 2012. REUTERS/Amr Abdallah Dalsh (EQUATORIAL GUINEA - Tags: ANIMALS SOCIETY) 

Boys look out from their home on a farm beside the Atlantic beach in Bata January 31, 2012. REUTERS/Amr Abdallah Dalsh (EQUATORIAL GUINEA - Tags: SOCIETY) 

A member of the Equatorial Guinea Choir attends a Sunday mass at the main Cathedral in Bata January 29, 2012. The majority of the population in Equatorial Guinea is Christian. REUTERS/Amr Abdallah Dalsh (EQUATORIAL GUINEA - Tags: RELIGION TRAVEL SOCIETY) 

Children scavenge at a public dump in Malabo January 28, 2012. REUTERS/Luc Gnago (EQUATORIAL GUINEA - Tags: SOCIETY ENVIRONMENT) 

Street vendors sell their goods in Malabo January 27, 2012. REUTERS/Luc Gnago (EQUATORIAL GUINEA - Tags: SOCIETY) 

Residents drink outside a snack bar in Malabo January 27, 2012. REUTERS/Luc Gnago (EQUATORIAL GUINEA - - Tags: SOCIETY FOOD) 

Boys play soccer on a beach in Bata January 27, 2012. REUTERS/Amr Abdallah Dalsh (EQUATORIAL GUINEA - Tags: SOCIETY SPORT SOCCER) 

A Senegal fan who painted his head with the colours of the country's flag watches a soccer match against Equatorial Guinea during their African Cup of Nations Group A soccer match at Estadio de Bata "Bata Stadium", in Bata January 25, 2012 REUTERS/Amr Abdallah Dalsh (EQUATORIAL GUINEA - Tags: SPORT SOCCER) 

Workers remove water from the pitch after a storm that delayed the start of the African Nations Cup Group A soccer match between Libya and Zambia at Estadio de Bata "Bata Stadium", in Bata January 25, 2012. REUTERS/Amr Abdallah Dalsh (EQUATORIAL GUINEA - Tags: SPORT SOCCER) 

Equatorial Guinean women talk as they sit in the yard of their home in Malabo January 24, 2012. REUTERS/Luc Gnago (EQUATORIAL GUINEA - - Tags: SOCIETY) 

A boy looks through a window in Malabo, the capital of Equatorial Guinea January 24, 2012. REUTERS/Luc Gnago (EQUATORIAL GUINEA - Tags: SOCIETY) 

A bee flies near a flower at a park along a street in Bata January 23, 2012. REUTERS/Amr Abdallah Dalsh (EQUATORIAL GUINEA - Tags: ANIMALS SOCIETY) 

Jose Maria, 8, drinks water after Zambia's national soccer team's training session at Matenda stadium, 25 km (16 miles) south of Bata January 23, 2012. Zambia will play their second African Nations Cup soccer match against Libya on Wednesday. REUTERS/Amr Abdallah Dalsh (EQUATORIAL GUINEA - Tags: SPORT SOCCER) 

A member of Equatorial Guinea's special police forces wears a gas mask after firing tear gas at Equatorial Guinea fans as they try to get inside the Estadio de Bata "Bata Stadium", which host the opening match and ceremony for the African Nations Cup, in Bata January 21, 2012. Picture taken January 21, 2012. REUTERS/Amr Abdallah Dalsh (EQUATORIAL GUINEA - Tags: SPORT SOCCER CIVIL UNREST) 

Equatorial Guinea's special police forces fire tear gas at Equatorial Guinea fans as they try to get inside Estadio de Bata "Bata Stadium", which will host the opening match and ceremony for the African Nations Cup, in Bata January 21, 2012. Picture taken January 21, 2012. REUTERS/Amr Abdallah Dalsh (EQUATORIAL GUINEA - Tags: SPORT SOCCER CIVIL UNREST) 

Equatorial Guinea's special police forces try to control Equatorial Guinea fans inside Estadio de Bata "Bata Stadium", which will host the opening match and ceremony for the African Nations Cup, in Bata January 21, 2012. The African Nations Cup is being co-hosted by Equatorial Guinea and Gabon from January 21 to February 12. Equatorial Guinea will play against Libya in the first match. REUTERS/Amr Abdallah Dalsh (EQUATORIAL GUINEA - Tags: SPORT SOCCER CIVIL UNREST TPX IMAGES OF THE DAY) 

A woman looks on before Friday prayers at the only mosque in the Bisa area of Bata, which will host tomorrow's opening ceremony for the African Nations Cup, January 20, 2012. Muslims in Equatorial Guinea, who is co-hosting the African Nations Cup with Gabon from January 21 to February 12, make up less than 1 percent of the population, according to a U.S. State Department report in 2007. The mosque was built by migrant workers from various African nations working in Bata, according to the worshippers. REUTERS/Amr Abdallah Dalsh (EQUATORIAL GUINEA - Tags: RELIGION SOCIETY) 

People buy religious books and food after Friday prayers at the only mosque in the Bisa area of Bata, which will host tomorrow's opening ceremony for the African Nations Cup, January 20, 2012. Muslims in Equatorial Guinea, who is co-hosting the African Nations Cup with Gabon from January 21 to February 12, make up less than 1 percent of the population, according to a U.S. State Department report in 2007. The mosque was built by migrant workers from various African nations working in Bata, according to the worshippers. REUTERS/Amr Abdallah Dalsh (EQUATORIAL GUINEA - Tags: RELIGION SOCIETY) 

Women are seen before Friday prayers at the only mosque in the Bisa area of Bata, which will host tomorrow's opening ceremony for the African Nations Cup, January 20, 2012. Muslims in Equatorial Guinea, who is co-hosting the African Nations Cup with Gabon from January 21 to February 12, make up less than 1 percent of the population, according to a U.S. State Department report in 2007. The mosque was built by migrant workers from various African nations working in Bata, according to the worshippers. REUTERS/Amr Abdallah Dalsh (EQUATORIAL GUINEA - Tags: RELIGION SOCIETY) 

A man sits at his shop which sells jerseys and flags along a street in Bata January 19, 2012. The African Nations Cup is being co-hosted by Equatorial Guinea and Gabon from January 21 to February 12. REUTERS/Amr Abdallah Dalsh (EQUATORIAL GUINEA - Tags: SPORT SOCCER BUSINESS) 

Students walk along a street after classes, in Bata January 17, 2012. REUTERS/Amr Abdallah Dalsh (EQUATORIAL GUINEA - Tags: EDUCATION SOCIETY) 

Exiled Equatorial Guinean politician Severo Moto speaks during a news conference in Madrid July 27, 2009. REUTERS/Susana Vera (SPAIN POLITICS) 

Exiled Equatorial Guinean politician Severo Moto speaks during a news conference in Madrid July 27, 2009. REUTERS/Susana Vera (SPAIN POLITICS) 

Exiled Equatorial Guinean politician Severo Moto speaks during a news conference in Madrid July 27, 2009. REUTERS/Susana Vera (SPAIN HEADSHOT POLITICS) 

Exiled Equatorial Guinean politician Severo Moto speaks during a news conference in Madrid July 27, 2009. REUTERS/Susana Vera (SPAIN POLITICS HEADSHOT IMAGES OF THE DAY) 

Ukrainian Defence Minister Anatoly Hrytsenko (L) and his Equatorial Guinean counterpart Antonio Mba Nguema inspect the guard of honour during a meeting in Kiev December 12, 2005. Antonio Mba Nguema arrived in Ukraine on Sunday. REUTERS/Ivan Chernichkin 

French President Jacques Chirac (R) sits next to Teodoro Obiang Nguema Mbasago, President of Equatorial Guinea,, during the opening ceremony of the Franco-African Summit in Bamako, Mali, December 3, 2005. Chirac told African leader on Saturday that rich nations must find more innovative ways to fund development in the world's poorest continent and pledged that France would champion their cause. Photo taken December 3, 2005. REUTERS/Luc Gnago Pictures of the Month December 2005 Pictures of the Year 2005 

Activists opposed to President Obiang's govertment stage protest in front of Equatorial Guinean embassy in Madrid. Activists burn a flag and a picture of Teodoro Obiang Nguema Mbasogo, President of Equatorial Guinea, during a protest against Obiang's government in front of Equatorial Guinean embassy in Madrid, June 24, 2005. Several people entered the embassy, where a violent scuffle took place. About ten people were arrested by Spanish riot police. REUTERS/Andrea Comas 

Spanish riot police perform body search activists opposed to the government of Teodoro Obiang Nguema Mbasogo, President of Equatorial Guinea, after a protest in front of the Equatorial Guinean embassy in Madrid, June 24, 2005. Several people entered the embassy, where a violent scuffle took place. About ten people were arrested by Spanish riot police. REUTERS/Andrea Comas ACO/TC 

Spanish riot police escort an employee of the Equatorial Guinea embassy, who was injured during a violent scuffle inside the embassy in Madrid, June 24, 2005. Several activists opposed to the government of Teodoro Obiang Nguema Mbasogo, President of Equatorial Guinea, staged a protest in front of the embassy. About ten people were arrested by Spanish riot police. REUTERS/Andrea Comas ACO/TC 

A man searches through papers inside the Equatorial Guinean embassy in Madrid, June 24, 2005, after a violent protest by activists opposed to the government of Teodoro Obiang Nguema Mbasogo, President of Equatorial Guinea. About ten people were arrested by Spanish riot police. REUTERS/Andrea Comas ACO/TC