Indian Hindu devotees help bathe an elderly woman as they perform rituals in the the river Ganges on Somvati Amavasya, or no moon day, in Allahabad, India, Monday, May 18, 2015. Somvati Amavasya is the no moon day that falls on a Monday in a traditional Hindu lunar calendar. (AP Photo/Rajesh Kumar Singh)

Rajesh Kumar Singh/AP

Indian Hindu devotees help bathe an elderly woman as they perform rituals in the the river Ganges on Somvati Amavasya, or no moon day, in Allahabad, India on Monday. Somvati Amavasya is the no moon day that falls on a Monday in a traditional Hindu lunar calendar

Jennifer Huxta/AFP

Protestors raise their hands during a demonstration in the Musaga neighbourhood of Bujumbura on Monday

In this photo taken on May 17, 2015, a girl paints on an umbrella in Pathein township, Ayeyarwady Delta, Myanmar.  (AP Photo/Khin Maung Win)

Khin Maung Win/AP

A girl paints on an umbrella in Pathein township, Ayeyarwady Delta, Myanmar

Rohingya migrants, who arrived in Indonesia by boat, queue up for their breakfast inside a temporary compound for refugees in Kuala Cangkoi village in Lhoksukon...Rohingya migrants, who arrived in Indonesia by boat, queue up for their breakfast inside a temporary compound for refugees in Kuala Cangkoi village in Lhoksukon, Indonesia's Aceh Province May 18, 2015. The United Nations has called on countries around the Andaman Sea not to push back the thousands of desperate Bangladeshis and Rohingya Muslims from Myanmar now stranded in rickety boats, and to rescue them instead

Beawiharta/Reuters

Rohingya migrants, who arrived in Indonesia by boat, queue up for their breakfast inside a temporary compound for refugees in Kuala Cangkoi village in Lhoksukon, Indonesia’s Aceh Province on Monday

Special Operations Battalion (BOPE) Police officers patrol as residents move about the Sao Carlos slum complex where the bodies of two men were found in Rio de Janeiro, Brazil, Friday, May 15, 2015. The bodies of two young men were discovered late Thursday in this so-called "pacified" slum where police are present.

Felipe Dana/AP

Special Operations Battalion (BOPE) Police officers patrol as residents move about the Sao Carlos slum complex where the bodies of two men were found in Rio de Janeiro, Brazil on Friday

Boys walk behind patrolling soldiers in Bujumbura, Burundi, May 15, 2015. Burundian forces arrested the leader of a failed coup on Friday and President Pierre Nkurunziza returned to the capital, his spokesman said, but protesters pledged to go back to the streets, setting the stage for more clashes.

Goran Tomasevic/Reuters

Boys walk behind patrolling soldiers in Bujumbura, Burundi. Burundian forces arrested the leader of a failed coup on Friday and President Pierre Nkurunziza returned to the capital

Children walk over rubble carrying a bag of bread after what activists said were airstrikes by warplanes loyal to Syria's President Bashar al-Assad in Erbeen, in the eastern Damascus suburb of Ghouta...Children walk over rubble carrying a bag of bread after what activists said were airstrikes by warplanes loyal to Syria's President Bashar al-Assad in Erbeen, in the eastern Damascus suburb of Ghouta May 15, 2015

Amer Almohibany/Reuters

Children walk over rubble carrying a bag of bread after airstrikes by warplanes loyal to Syria’s President Bashar al-Assad in Erbeen, in the eastern Damascus suburb of Ghouta on Friday

Skyscrapers Shanghai World Financial Center and Jin Mao Tower are seen during heavy rain at the financial district of Pudong in Shanghai on Friday

Aly Song/Reuters

Skyscrapers Shanghai World Financial Center and Jin Mao Tower are seen during heavy rain at the financial district of Pudong in Shanghai on Friday

Former anti-Balaka child soldiers wait to be released in Bambari, Central African Republic

Emmanuel Braun/Reuters

Former anti-Balaka child soldiers wait to be released in Bambari, Central African Republic

Mount Etna spits lava as it erupts near Catania, Sicily, Italy, on Friday

Davide Caudullo/EPA

Mount Etna spits lava as it erupts near Catania, Sicily, Italy, on Friday

A group of 300 sub-Saharan Africans sit on board the Italian Finance Police vessel Di Bartolo as their boat  is left to adrift off the coast of Sicily

Alessandro Bianchi/Reuters

A group of 300 sub-Saharan Africans sit on board the Italian Finance Police vessel Di Bartolo as their boat is left to adrift off the coast of Sicily.

A man reads a newspaper as his friend looks at his mobile phone, as they sit next to collapsed houses on the outskirts of in Kathmandu

Ahmad Masood/Reuters

A man reads a newspaper as his friend looks at his mobile phone, as they sit next to collapsed houses on the outskirts of in Kathmandu, Nepal, on Friday

Boca Juniors fans cheer their team before a Copa Libertadores round of sixteen soccer match against River Plate in Buenos Aires, Argentina

AP Photo/Natacha Pisarenk

Boca Juniors fans cheer their team before a Copa Libertadores round of sixteen soccer match against River Plate in Buenos Aires, Argentina

Iraqi Shia Muslim worshippers carry a mock coffin outside the Imam al-Kadhim shrine as they gather to mark the anniversary of the death of the eighth century revered Imam on Thursday in the Kadhimiya district of northern Baghdad

Ahmad Al-Rubaye/AFP

Iraqi Shia Muslim worshippers carry a mock coffin outside the Imam al-Kadhim shrine as they gather to mark the anniversary of the death of the eighth century revered Imam on Thursday in the Kadhimiya district of northern Baghdad

David Hockney presents his new body of work at the Annely Juda gallery, Mayfiar, London

Charlie Bibby/FT

David Hockney presents his new body of work at the Annely Juda gallery, Mayfair, London on Thursday

A Palestinian woman looks from a window of her house in the Al-Shati refugee camp in Gaza City on May 14, 2015 ahead of the commemorations for the 67th anniversary of the "Nakba". "Nakba" means in Arabic "catastrophe" in reference to the birth of the state of Israel 67-years-ago in British-mandate Palestine, which led to the displacement of hundreds of thousands of Palestinians who either fled or were driven out of their homes during the 1948 war over Israel's creation

Mohammed Abed/AFP

A Palestinian woman looks from a window of her house in the Al-Shati refugee camp in Gaza City on Thursday ahead of the commemorations for the 67th anniversary of the “Nakba”

Children and honour guards watch a performance during the so-called parade of children's troops in Rostov-on-Don, southern Russia, on Thursday

Eduard Korniyenko/Reuters

Children and honour guards watch a performance during the so-called parade of children’s troops in Rostov-on-Don, southern Russia, on Thursday

The evening sky in Schwangau, southern Germany, is illuminated by lightning during thunderstorms

Jonas Walzberg/dpa/AP

The evening sky in Schwangau, southern Germany, is illuminated by lightning during thunderstorms

A group of Maoris perform for Britain's Prince Harry during his visit to Putiki Marae in Whanganui on Wednesday

Marty Melville/AFP

A group of Maoris perform for Britain’s Prince Harry during his visit to Putiki Marae in Whanganui on Wednesday

In this handout photograph taken and rel...In this handout photograph taken and released by The Indian Press Information Bureau (PIB) on May 14, 2015, India's Prime Minister Narendra Modi looks on as he visits The Terracota Warriors Museum in Xian.  India's Prime Minister Narendra Modi is taking his global investment push to China this week, as Asia's rival superpowers look to put aside a festering border dispute and identify areas of economic cooperation. Modi has arrived for his first visit as premier to China before heading to South Korea where he will also seek help to upgrade India's creaking infrastructure.    AFP PHOTO/PIB  ----EDITORS NOTE---- RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT  - "AFP PHOTO /PIB " - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS-/AFP/Getty Images

AFP/Getty

India’s Prime Minister Narendra Modi looks on as he visits The Terracota Warriors Museum in Xian. India’s Prime Minister Narendra Modi is taking his global investment push to China this week