People air quilts at a university campus at the beginning of the new semester in Tai'an, Shandong province, China September 11, 2016. Picture taken September 11, 2016. REUTERS/Stringer ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY. EDITORIAL USE ONLY. CHINA OUT. NO COMMERCIAL OR EDITORIAL SALES IN CHINA.

Reuters

People air quilts at a university campus at the beginning of the new semester in Tai’an, Shandong province, China

North Korean leader Kim Jong Un provides field guidance to Farm No. 1116 under KPA Unit 810, in this undated photo released by North Korea's Korean Central News Agency (KCNA) in Pyongyang September 13, 2016.   KCNA/via Reuters   ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY. EDITORIAL USE ONLY. REUTERS IS UNABLE TO INDEPENDENTLY VERIFY THIS IMAGE. NO THIRD PARTY SALES. SOUTH KOREA OUT.      TPX IMAGES OF THE DAY

KCNA/Reuters

North Korean leader Kim Jong Un provides field guidance to Farm No. 1116 under KPA Unit 810 in Pyongyang

A Syrian man and his son pray over the grave of a relative at a cemetery in the rebel-held town of Douma, east of the capital Damascus, on September 12, 2016, on the first day of the Muslim holiday of Eid al-Adha. / AFP PHOTO / Sameer Al-DoumySAMEER AL-DOUMY/AFP/Getty Images

Sameer Al-Doumy/AFP/Getty

A Syrian man and his son pray over the grave of a relative at a cemetery in the rebel-held town of Douma, east of the capital Damascus 

A Red-eyed green frog (Agalychnis callidryases) photographed at the Montibelli private wildlife reserve, in the municipality of Ticuantepe, 15km south of Managua, on September 9, 2016. / AFP PHOTO / INTI OCONINTI OCON/AFP/Getty Images

Inti Oconinti Ocon/AFP/Getty

A Red-eyed green frog (Agalychnis callidryases) at the Montibelli private wildlife reserve, Ticuantepe, Nicaragua

Dancers leave St Nicholas Church before the Abbots Bromley Horn Dance in Abbots Bromley, Britain

Darren Staples/Reuters

Dancers leave St Nicholas Church before the Abbots Bromley Horn Dance in Abbots Bromley

picture released by the official Syrian Arab News Agency (SANA) on September 12, 2016, shows Syrian President Bashar al-Assad (C-L) walking on a street alongside officials after performing the morning Eid al-Adha prayer at a mosque in a government-controlled area of Daraya.

SANA/AFP/Getty

A picture released by the official Syrian Arab News Agency (SANA) shows Syrian President Bashar al-Assad (C-L) walking on a street alongside officials after performing the morning Eid al-Adha prayer at a mosque in a government-controlled area of Daraya.

Miss Tennessee Outstanding Teen Leah Humble, 16, greets admirers outside Boardwalk Hall, the venue for the 96th Miss America Pageant that took place in Atlantic City, New Jersey

Mark Makela/Reuters

Miss Tennessee Outstanding Teen Leah Humble, 16, greets admirers outside Boardwalk Hall, the venue for the 96th Miss America Pageant, Atlantic City, New Jersey

An Afghan girl rides on swings during the first day of the Muslim holiday Eid al-Adha in Kabul, Afghanistan

Mohammad Ismail/Reuters

An Afghan girl rides on swings during the first day of the Muslim holiday Eid al-Adha in Kabul

Members of an Afghan guard of honour greet each other after offering Eid-al-Adha prayers at the Hazrat-i- Ali shrine in Mazar-i Sharif on September 12, 2016. Afghans started celebrating Eid al-Adha or "Feast of the Sacrifice", which marks the end of the annual hajj or pilgrimage to Mecca and is celebrated in remembrance of Abraham's readiness to sacrifice his son to God. / AFP PHOTO / FARSHAD USYANFARSHAD USYAN/AFP/Getty Images

Farshad Usyan/AFP/Getty

Members of an Afghan guard of honour greet each other after offering Eid-al-Adha prayers at the Hazrat-i- Ali shrine in Mazar-i Sharif in Afghanistan 

Syrian men carrying babies make their way through the rubble of destroyed buildings following a reported air strike on the rebel-held Salihin neighbourhood of the northern city of Aleppo, on September 11, 2016. Air strikes have killed dozens in rebel-held parts of Syria as the opposition considers whether to join a US-Russia truce deal due to take effect on September 12. / AFP PHOTO / AMEER ALHALBIAMEER ALHALBI/AFP/Getty Images

Ameer Alhalbi/AFP/Getty

Syrian men carrying babies make their way through the rubble of destroyed buildings following a reported air strike on the rebel-held Salihin neighbourhood of the northern city of Aleppo, on Sunday 

The gloved hands of new recruits taking part in the Metropolitan Police Service's first passing-out parade on the redeveloped grounds at the Peel Centre in Hendon, north London. PRESS ASSOCIATION Photo. Picture date: Friday September 9, 2016. Photo credit should read: Yui Mok/PA Wire

Yui Mok/PA

The gloved hands of new recruits taking part in the Metropolitan Police Service’s first passing-out parade on the redeveloped grounds at the Peel Centre in Hendon, north London

A camel held in ropes by its traders performs a dance to attract customers at a makeshift cattle market, ahead of the Eid al-Adha festival in Karachi, Pakistan September

Akhtar Soomro/Reuters

A camel held in ropes by its traders performs a dance to attract customers at a makeshift cattle market, ahead of the Eid al-Adha festival in Karachi, Pakistan 

Portuguese fireman watch as a Canadair sprays water at a forest fire in the area of Serra de Monchique, in Monchique, Portugal, 09 September 2016. The Monchique fire has been burning since 03 September, forcing the evacuation of several towns.  EPA/JOSE SENA GOULAO

Jose Sena Goulao/EPA

Portuguese fireman watch as a Canadair sprays water at a forest fire in the area of Serra de Monchique, in Monchique, Portugal

Frankie Dettori celebrates after riding Ardad to victory in the Pepsi Max Flying Childers Stakes during day three of the 2016 Ladbrokes St Leger Festival at Doncaster Racecourse, Doncaster. PRESS ASSOCIATION Photo. Picture date: Friday September 9, 2016. See PA story RACING Doncaster. Photo credit should read: Anna Gowthorpe/PA Wire

Anna Gowthorpe/PA

Frankie Dettori celebrates after riding Ardad to victory in the Pepsi Max Flying Childers Stakes during day three of the 2016 Ladbrokes St Leger Festival at Doncaster Racecourse, Doncaster

Muslim pilgrims walk after Friday prayers at the Grand mosque in Mecca September

Ahmed Jadallah/Reuters

Muslim pilgrims walk after Friday prayers at the Grand mosque in Mecca

Greek Prime Minister Alexis Tsipras welcomes Italian Prime Minister Matteo Renzi for a summit of southern European states at Zappeion Hall in Athens, Greece, September 9, 2016. REUTERS/Alkis Konstantinidis     TPX IMAGES OF THE DAY

Alkis Konstantinidis/Reuters

Greek Prime Minister Alexis Tsipras welcomes Italian Prime Minister Matteo Renzi for a summit of southern European states at Zappeion Hall in Athens, Greece

Paramilitary policemen listen to the officer addressing them in the Forbidden City in Beijing, China, September 9, 2016. REUTERS/Thomas Peter   TPX IMAGES OF THE DAY

Thomas Peter/Reuters

Paramilitary policemen listen to the officer addressing them in the Forbidden City in Beijing, China

The sun rises over the Mont Blanc, 3,842 meters (12,605 feet), between Italy and France, as seen from a helicopter, Friday, Sept. 9, 2016. Dozens of tourists who were trapped in cable cars dangling above the Alps overnight, including a 10-year-old child, have all been safely rescued. A series of cable cars got stuck after cables tangled at 3,600 meters altitude over the Mont Blanc massif in the Alps on Thursday, prompting a major rescue operation. (AP Photo/Luca Bruno)

Luca Bruno/AP

The sun rises over the Mont Blanc, 3,842 meters (12,605 feet), between Italy and France

Indian children look on as activists burn tyres and material to blockade traffic on a major connecting road during a statewide strike in Bangalore on September 9, 2016.   Agitation in the southern Indian state of Karnataka has been increasing since the recent Supreme Court order to the state to release of 15,000 cusecs of water from the River Cauvery each day to the neighbouring state of Tamil Nadu. Karnataka is facing an acute shortage of water in its reservoirs, and rivers as the state has only received subpar rainfall in the catchment areas leading to protests by farmers and pro-Kannada organisations refusing to share water with its neighbouring state. / AFP PHOTO / MANJUNATH KIRANMANJUNATH KIRAN/AFP/Getty Images

Manjunath Kiran/AFP/Getty

Indian children look on as activists burn tyres and material to blockade traffic on a major connecting road during a statewide strike in Bangalore, India

 South Korean and US marines move to a position during a re-enactment of the Incheon landing to mark the 66th anniversary of the start of Operation Chromite, the battle that turned the tide in the Korean War, in the western port city of Incheon on September 9, 2016.   South Korea marked the 66th anniversary of the daring Incheon Landing which was led by US General Douglas MacArthur and led two weeks later to the recapture of Seoul from North Korean invaders during the Korean War. North Korea has conducted a fifth nuclear test, its most powerful to date, South Korea's President Park Geun-Hye said on September 9, condemning the move as an act of "self-destruction" that would deepen its isolation. / AFP PHOTO / JUNG YEON-JEJUNG YEON-JE/AFP/Getty Images

Jung Yeon-Jejung/AFP/Getty

South Korean and US marines move to a position during a re-enactment of the Incheon landing to mark the 66th anniversary of the start of Operation Chromite, the battle that turned the tide in the Korean War, in the western port city of Incheon