A Turkana tribeswoman reacts after an accidental fire of a shelter in Turkana settlement in Ilemi Triangle, Kenya, July 15, 2019. REUTERS/Goran Tomasevic

Breni, a Honduran girl who is seeking asylum in the U.S., is carried from the Rio Grande in distress, where she had been bathing across the river from a Brownsville, Texas U.S. Customs and Border Protection tent facility as immigration hearings were being held by video teleconference, in Matamoros, Mexico September 12, 2019. Most of the people living in an encampment near the Gateway International Bridge have been sent back under the "Remain in Mexico" program, officially named Migrant Protection Protocols (MPP).

Anti-extradition bill protesters hold hands up to form a human chain during a rally to call for political reforms in Hong Kong, China September 13, 2019.

Traditional healer Bi Mwanahija Mzee, 56, massages three-month-old infant Abduli Juma in Zanzibar City, Tanzania, January 20, 2019. Abduli's mom, Semeni, brought him to the healer because he is very lethargic and can't hold his head up. Bi Mwanahija Mzee believes that the baby is possessed by supernatural sprits like djinns. However hospital doctors say he has an incurable brain issue. REUTERS/Nicky Woo

An aerial photo shows Boeing 737 MAX aircraft at Boeing facilities at the Grant County International Airport in Moses Lake, Washington, September 16, 2019.

A tourist poses for a picture at Kuala Lumpur Tower with the city skyline in the background shrouded by haze, in Kuala Lumpur, Malaysia, September 13, 2019.

Greta Thunberg and former U.S. President Barack Obama fist bump during a meeting at Obama's personal office in Washington, D.C., U.S., September 16, 2019 in this screen grab obtained from a social media video. Obama Foundation/via REUTERS.

An anti-government protester catches fire after throwing Molotov cocktail during a demonstration near Central Government Complex in Hong Kong, China, September 15, 2019. Image used for illustrative purpose.

Children act out taking pictures with a non-functioning camera in Dhaka, Bangladesh, September 16, 2019.

Palestinian fishermen repair their net at Al-Shati refugee camp in Gaza City September 16, 2019.

Rescue workers on a boat rescue a person stranded inside a flooded tunnel after heavy floods in Pilar de la Horadada, Spain, September 13, 2019. REUTERS/Sergio Perez

Money is seen in the back pocket of U.S. President Donald Trump as he boards Air Force One at Moffett Federal Airfield in Mountain View, California, U.S. September 17, 2019.

Teenagers run in front of an old baseball scoreboard in Los Ninos Cantores stadium in Maracaibo, Venezuela, August 28, 2019. REUTERS/Manaure Quintero

Artist Antony Gormley poses between figures entitled 'Lost Horizon I' which forms part of the British sculptor's exhibition of new and existing works at the Royal Academy of Arts in London, Britain, September 16, 2019. REUTERS/Toby Melville

A Dambe boxer punches his opponent during the ancient brutal martial art of Dambe boxing, a sport associated with Hausa people of West Africa during a weekend match in Dei-Dei, Abuja, Nigeria June 30, 2019.

A man carrying a toy gun walks along a street blocked by barricades during a general strike day to protest against the shortage of fuel and against the government, in Port-au-Prince, Haiti, September 16, 2019.

General Motors assembly workers picket outside the General Motors Bowling Green plant during the United Auto Workers (UAW) national strike in Bowling Green, Kentucky, U.S., September 17, 2019.

A tract of Amazon jungle burns as it is cleared by farmers in Rio Pardo, Rondonia, Brazil September 15, 2019.

U.S. Senator and Democratic presidential candidate Elizabeth Warren speaks at Washington Square Park in New York, New York, U.S. September 16, 2019.

Image used for illustrative purpose. Remains of the missiles which Saudi government says were used to attack an Aramco oil facility, are displayed during a news conference in Riyadh, Saudi Arabia September 18, 2019. REUTERS/Hamad I Mohammed