Migrants who were rescued from a boat that capsized in the Mediterranean Sea are pictured in Al-Beheira, Egypt, September 22, 2016. REUTERS/Mohamed Abd El Ghany

Indonesian President Joko Widodo attends the opening ceremony of the G20 Summit in Hangzhou in eastern China's Zhejiang province, Sunday, Sept. 4, 2016. REUTERS/Mark Schiefelbein/Pool

People gather at the site of a Saudi-led air strike in the Red Sea port city of Hodeidah, Yemen September 22, 2016. REUTERS/Abduljabbar Zeyad

A boy looks at a damaged house at the site of a Saudi-led air strike in the Red Sea port city of Hodeidah, Yemen September 22, 2016. REUTERS/Abduljabbar Zeyad

People search for belongings among the rubble of a house at the site of a Saudi-led air strike in the Red Sea port city of Hodeidah, Yemen September 22, 2016. REUTERS/Abduljabbar Zeyad

A Yahoo logo is seen on top of the building where they have offices in New York City, U.S., July 25, 2016. REUTERS/Brendan McDermid

Floor governor Peter Giacchi (C) gives a price for Noble Midstream Partners LP, during the company's IPO on the floor of the New York Stock Exchange (NYSE) in New York City, U.S., September 15, 2016. REUTERS/Brendan McDermid

Lennar model homes are seen at a development in Arvada, Colorado September 17, 2014. REUTERS/Rick Wilking