French President's Emmanuel Macron's security officer looks as WHO Director-General Tedros Adhanom Ghebreyesus speaks during the WHO Academy opening ceremony chaired by him and French President Emmanuel Macron (not pictured), in Lyon, France, September 27, 2021. REUTERS/Denis Balibouse/Pool

Women run past burning tires during protests against the deteriorating economic situation and the devaluation of the local currency, in Taiz, Yemen September 27, 2021. REUTERS/Anees Mahyoub

People ride a motorcycle past burning tires during protests against the deteriorating economic situation and the devaluation of the local currency, in Taiz, Yemen September 27, 2021. REUTERS/Anees Mahyoub TPX IMAGES OF THE DAY

People demonstrate against the deteriorating economic situation and the devaluation of the local currency, in Taiz, Yemen September 27, 2021. REUTERS/Anees Mahyoub

People demonstrate against the deteriorating economic situation and the devaluation of the local currency, in Taiz, Yemen September 27, 2021. REUTERS/Anees Mahyoub

People demonstrate against the deteriorating economic situation and the devaluation of the local currency, in Taiz, Yemen September 27, 2021. REUTERS/Anees Mahyoub

People demonstrate against the deteriorating economic situation and the devaluation of the local currency, in Taiz, Yemen September 27, 2021. REUTERS/Anees Mahyoub

Democratic Party chairman Lo Kin-hei attends a news conference to update on the party's plan on upcoming Legislative Council election, in Hong Kong, China September 26, 2021. REUTERS/Tyrone Siu

Democratic Party chairman Lo Kin-hei attends a news conference to update on the party's plan on upcoming Legislative Council election, in Hong Kong, China September 26, 2021. REUTERS/Tyrone Siu

Democratic Party chairman Lo Kin-hei attends a news conference to update on the party's plan on upcoming Legislative Council election, in Hong Kong, China September 26, 2021. REUTERS/Tyrone Siu

Democratic Party chairman Lo Kin-hei attends a news conference to update on the party's plan on upcoming Legislative Council election, in Hong Kong, China September 26, 2021. REUTERS/Tyrone Siu

Democratic Party chairman Lo Kin-hei attends a news conference to update on the party's plan on upcoming Legislative Council election, in Hong Kong, China September 26, 2021. REUTERS/Tyrone Siu

The logo of the Democratic Party is seen in its office, in Hong Kong, China September 26, 2021. REUTERS/Tyrone Siu

The logo of the Democratic Party is seen in its office, in Hong Kong, China September 26, 2021. REUTERS/Tyrone Siu

Security personnel and police vehicles surround the headquarters of China Evergrande Group in Shenzhen, Guangdong province, China September 26, 2021. REUTERS/Aly Song

A Somali police officer reacts at the scene of a suicide car bomb near the president's residence, in Mogadishu, Somalia, September 25, 2021. REUTERS/Feisal Omar

A boy wears a traditional dagger, or Jambiya, as he stands at a mosque during the funeral of his relative (pictured in the poster) in Sanaa, Yemen September 25, 2021. REUTERS/Khaled Abdullah

A soldier shouts slogans during the funeral of Houthi fighters in Sanaa, Yemen September 25, 2021. REUTERS/Khaled Abdullah

Honor guards carry the coffins of Houthi fighters during a funeral in Sanaa, Yemen September 25, 2021. REUTERS/Khaled Abdullah

Shi'ite pilgrims walk past an Iraqi security forces member to the holy city of Kerbala, ahead of the holy Shi'ite ritual of Arbaeen in Baghdad, Iraq September 25, 2021. REUTERS/Ahmed Saad

Iraqi security forces check Shi'ite Muslim pilgrims who walk to the holy city of Kerbala, ahead of the holy Shi'ite ritual of Arbaeen, in Baghdad, Iraq September 25, 2021. REUTERS/Ahmed Saad

A United Nations security personnel stands guard during the 76th Session of the U.N. General Assembly, in New York City, U.S., September 25, 2021. REUTERS/Eduardo Munoz/Pool

A police officer keeps watch as Red Crescent workers remove the body of a victim at the scene of a suicide car bomb explosion near the president's residence, in Mogadishu, Somalia, September 25, 2021. REUTERS/Feisal Omar

A man reacts after his sister was identified as a victim at the scene of a suicide car bomb explosion near the president's residence, in Mogadishu, Somalia, September 25, 2021. REUTERS/Feisal Omar

Relatives carry a body believed to be that of a family member at the scene of a suicide car bomb explosion near the president's residence, in Mogadishu, Somalia, September 25, 2021. REUTERS/Feisal Omar

People believed to be family members of a victim look inside a damaged car at the scene of a suicide car bomb explosion near the president's residence, in Mogadishu, Somalia, September 25, 2021. REUTERS/Feisal Omar

A police officer keeps watch as Red Crescent workers remove the body of a victim at the scene of a suicide car bomb explosion near the president's residence, in Mogadishu, Somalia, September 25, 2021. REUTERS/Feisal Omar TPX IMAGES OF THE DAY

Civilians and Somalian security officers gather at the scene of a suicide car bomb at a street junction near the president's residence, in Mogadishu, Somalia, September 25, 2021. REUTERS/Feisal Omar

Civilians and Somalian security officers gather at the scene of a suicide car bomb at a street junction near the president's residence, in Mogadishu, Somalia, September 25, 2021. REUTERS/Feisal Omar

Civilians and Somalian security officers gather at the scene of a suicide car bomb at a street junction near the president's residence, in Mogadishu, Somalia, September 25, 2021. REUTERS/Feisal Omar

Red Crescent workers carry the body of a victim at the scene of a suicide car bomb near the president's residence, in Mogadishu, Somalia, September 25, 2021. REUTERS/Feisal Omar

Somalian security officers gather at the scene of a suicide car bomb at a street junction near the president's residence, in Mogadishu, Somalia, September 25, 2021. REUTERS/Feisal Omar

An exhibition board is pictured at the the June 4th Museum showing the annual turnout of the candlelight vigil which mourns those who died during the military crackdown on the pro-democracy movement at Beijing's Tiananmen Square in 1989, after it was announced that the Hong Kong Alliance in Support of Patriotic Democratic Movements of China group will disband, in Hong Kong, China September 25, 2021. REUTERS/Tyrone Siu

Richard Tsoi, secretary of the Hong Kong Alliance in Support of Patriotic Democratic Movements of China, poses after it was announced that the group will disband, at the June 4th Museum, in Hong Kong, China September 25, 2021. REUTERS/Tyrone Siu

A cut out of Szeto Wah, the late founding chairman of the Hong Kong Alliance in Support of Patriotic Democratic Movements of China, stands in front of the logo of the group, after it was announced that the group will disband, at the June 4th Museum, in Hong Kong, China September 25, 2021. REUTERS/Tyrone Siu

A person stands in front of a logo of the Hong Kong Alliance in Support of Patriotic Democratic Movements of China and a cut out of Szeto Wah, the late founding chairman of the group, after it was announced that the group will disband, at the June 4th Museum, in Hong Kong, China September 25, 2021. REUTERS/Tyrone Siu

Richard Tsoi, secretary of the Hong Kong Alliance in Support of Patriotic Democratic Movements of China, speaks to media after it was announced that the group will disband, in Hong Kong, China September 25, 2021. REUTERS/Tyrone Siu

Richard Tsoi, secretary of the Hong Kong Alliance in Support of Patriotic Democratic Movements of China, bows as he speaks to media after announcing the group will disband, in Hong Kong, China September 25, 2021. REUTERS/Tyrone Siu

Mozambique's President Filipe Nyusi and Rwandan President Paul Kagame walk together during an inspection of Mozambican and Rwandan security forces in Pemba, Mozambique, September 24, 2021. Picture taken September 24, 2021.REUTERS/Baz Ratner

Mozambique's President Filipe Nyusi speaks during an inspection of Mozambican and Rwandan security forces in Pemba, Mozambique. September 24, 2021.Picture taken September 24, 2021.REUTERS/Baz Ratner

Mozambique's President Filipe Nyusi and Rwandan President Paul Kagame walk during an inspection of Mozambican and Rwandan security forces in Pemba, Mozambique. September 24, 2021.Picture taken September 24, 2021.REUTERS/Baz Ratner

U.S. Vice President Kamala Harris meets with Japanese Prime Minister Yoshihide Suga and Australian Prime Minister Scott Morrison in the vice president's ceremonial office of the Eisenhower Executive Office Building at the White House campus in Washington, U.S., September 24, 2021. Also pictured, Japan's Senior Deputy Minister for Foreign Affairs Yamada Shigeo, U.S. Special Assistant to the President and Deputy National Security Advisor to the Vice President Philip Gordon and National Security Adviser to the Australian Prime Minister Michelle Chan. Patrick Semansky/Pool via REUTERS

Libyans holding signs and their national flag participate in a protest against the eastern-based House of Representatives, which recently withdrew confidence from the country's interim prime minister, in Tripoli, Libya, September 24, 2021.REUTERS/Nada Harib

Libyans holding signs and their national flag participate in a protest against the eastern-based House of Representatives, which recently withdrew confidence from the country's interim prime minister, in Tripoli, Libya, September 24, 2021.REUTERS/Nada Harib

Libyan Prime Minister Abdulhamid Dbeibah speaks during a protest against the eastern-based House of Representatives, which recently withdrew confidence from the country's interim prime minister, in Tripoli, Libya, September 24, 2021.REUTERS/Nada Harib

Libyan Prime Minister Abdulhamid Dbeibah speaks during a protest against the eastern-based House of Representatives, which recently withdrew confidence from the country's interim prime minister, in Tripoli, Libya, September 24, 2021. REUTERS/Nada Harib

Libyans holding their national flag participate in a protest against the eastern-based House of Representatives, which recently withdrew confidence from the country's interim prime minister, in Tripoli, Libya, September 24, 2021.REUTERS/Nada Harib

White House Press Secretary Jen Psaki listens as U.S. Secretary of Homeland Security Alejandro Mayorkas speaks about an investigation into the treatment of Haitian migrants on the U.S.-Mexican border, during the daily briefing in the Brady Press Briefing Room at the White House in Washington, U.S., September 24, 2021. REUTERS/Evelyn Hockstein

U.S. Secretary of Homeland Security Alejandro Mayorkas speaks about an investigation into the treatment of Haitian migrants on the U.S.-Mexican border as he addresses the daily briefing in the Brady Press Briefing Room at the White House in Washington, U.S., September 24, 2021. REUTERS/Evelyn Hockstein

U.S. Secretary of Homeland Security Alejandro Mayorkas discusses the investigation into the treatment of Haitian migrants as he addresses the daily briefing in the Brady Press Briefing Room at the White House in Washington, U.S., September 24, 2021. REUTERS/Evelyn Hockstein

White House Press Secretary Jen Psaki listens as U.S. Secretary of Homeland Security Alejandro Mayorkas speaks about an investigation into the treatment of Haitian migrants on the U.S.-Mexican border, during the daily briefing in the Brady Press Briefing Room at the White House in Washington, U.S., September 24, 2021. REUTERS/Evelyn Hockstein

White House Press Secretary Jen Psaki listens as U.S. Secretary of Homeland Security Alejandro Mayorkas speaks about an investigation into the treatment of Haitian migrants on the U.S.-Mexican border, during the daily briefing in the Brady Press Briefing Room at the White House in Washington, U.S., September 24, 2021. REUTERS/Evelyn Hockstein

U.S. Secretary of Homeland Security Alejandro Mayorkas speaks about an investigation into the treatment of Haitian migrants on the U.S.-Mexican border as he addresses the daily briefing in the Brady Press Briefing Room at the White House in Washington, U.S., September 24, 2021. REUTERS/Evelyn Hockstein

White House Press Secretary Jen Psaki listens as U.S. Secretary of Homeland Security Alejandro Mayorkas speaks about an investigation into the treatment of Haitian migrants on the U.S.-Mexican border, during the daily briefing in the Brady Press Briefing Room at the White House in Washington, U.S., September 24, 2021. REUTERS/Evelyn Hockstein

U.S. Secretary of Homeland Security Alejandro Mayorkas takes questions as he speaks about an investigation into the treatment of Haitian migrants on the U.S.-Mexican border, during the daily briefing in the Brady Press Briefing Room at the White House in Washington, U.S., September 24, 2021. REUTERS/Evelyn Hockstein

U.S. Secretary of Homeland Security Alejandro Mayorkas speaks about an investigation into the treatment of Haitian migrants on the U.S.-Mexican border as he addresses the daily briefing in the Brady Press Briefing Room at the White House in Washington, U.S., September 24, 2021. REUTERS/Evelyn Hockstein

White House Press Secretary Jen Psaki listens as U.S. Secretary of Homeland Security Alejandro Mayorkas speaks about an investigation into the treatment of Haitian migrants on the U.S.-Mexican border, during the daily briefing in the Brady Press Briefing Room at the White House in Washington, U.S., September 24, 2021. REUTERS/Evelyn Hockstein

Barbados Prime Minister and Minister for National Security and the Civil Service Mia Amor Mottley speaks at the UN General Assembly 76th session General Debate in UN General Assembly Hall at the United Nations Headquarters in New York City, New York, U.S., September 24, 2021. John Angelillo/Pool via REUTERS

Barbados Prime Minister and Minister for National Security and the Civil Service Mia Amor Mottley speaks at the UN General Assembly 76th session General Debate in UN General Assembly Hall at the United Nations Headquarters in New York City, New York, U.S., September 24, 2021. John Angelillo/Pool via REUTERS

Servicemen attend the "RAPID TRIDENT-2021" military exercise at Ukraine's International Peacekeeping Security Centre near Yavoriv in the Lviv region, Ukraine September 24, 2021. REUTERS/Gleb Garanich