Venezuela's President Nicolas Maduro talks to the media during a news conference after the 17th Non-Aligned Summit in Porlamar, Venezuela September 18, 2016. REUTERS/Marco Bello

Venezuela's President Nicolas Maduro talks to the media during a news conference after the 17th Non-Aligned Summit in Porlamar, Venezuela September 18, 2016. REUTERS/Marco Bello

Venezuela's President Nicolas Maduro holds a book with a photo of Venezuela's late President Hugo Chavez as he talks to the media during a news conference after the 17th Non-Aligned Summit in Porlamar, Venezuela September 18, 2016. REUTERS/Marco Bello

Venezuela's President Nicolas Maduro talks to the media during a news conference after the 17th Non-Aligned Summit in Porlamar, Venezuela September 18, 2016. REUTERS/Marco Bello

Venezuela's President Nicolas Maduro talks to the media during a news conference after the 17th Non-Aligned Summit in Porlamar, Venezuela September 18, 2016. REUTERS/Marco Bello

A man walks past at an electronic board showing the Japanese yen's exchange rate against British pound (R) and Euro outside a brokerage in Tokyo, Japan, July 6, 2016. REUTERS/Issei Kato

Egyptian President Abdel Fattah al-Sisi speaks during the opening of the first and second phases of the housing project "Long Live Egypt", which focuses on development in the country's slums, at Al-Asmarat district in Al Mokattam area, east of Cairo, Egypt May 30, 2016 in this handout picture courtesy of the Egyptian Presidency. The Egyptian Presidency/Handout via REUTERS

Venezuela's President Nicolas Maduro (C) attends the 17th Non-Aligned Summit in Porlamar, Venezuela September 18, 2016. Miraflores Palace/Handout via REUTERS