Venezuela's President Nicolas Maduro speaks during his weekly broadcast "En contacto con Maduro" (In contact with Maduro) in Caracas, Venezuela September 13, 2016. Miraflores Palace/Handout via REUTERS

People gather to buy staple items and basic food outside a supermarket in Caracas, Venezuela September 14, 2016. REUTERS/Henry Romero

Venezuela's President Nicolas Maduro speaks during his weekly broadcast "En contacto con Maduro" (In contact with Maduro) in Caracas, Venezuela September 13, 2016. Miraflores Palace/Handout via REUTERS

Opposition supporters take part in a rally to demand a referendum to remove Venezuela's President Nicolas Maduro, in Caracas, Venezuela, September 16, 2016. REUTERS/Henry Romero

People wait to buy staple items and basic food outside a supermarket in Caracas, Venezuela September 14, 2016. REUTERS/Henry Romero

A Banamex bank advertisement is seen in Mexico City August 28, 2014. REUTERS/Tomas Bravo

A specialist trader works at his post on the floor of the New York Stock Exchange (NYSE) in New York City, U.S., September 15, 2016. REUTERS/Brendan McDermid

A Wells Fargo branch is seen in the Chicago suburb of Evanston, Illinois, U.S. on February 10, 2015. REUTERS/Jim Young/File Photo