Police officers stand outside the home of Thomas Mair, named by local media as the man who was arrested after Labour MP Jo Cox was murdered in her constituency near Leeds, Britain June 17, 2016 REUTERS/Craig Brough

2016 Rio Olympics - Triathlon - Final - Men's Final - Fort Copacabana - Rio de Janeiro, Brazil - 18/08/2016. Mario Mola (ESP) of Spain and Leonardo Chacon (CRC) of Costa Rica compete. REUTERS/Damir Sagolj FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

FILE PHOTO - Arleigh Burke-class guided-missile destroyer USS Mustin (DDG 89) transits in formation with Japan Maritime Self-Defense Force ships JS Kirisame (DD 104) and JS Asayuki (DD 132) during bilateral training in South China Sea on April 21, 2015. Courtesy David Flewellyn/U.S. Navy/Handout via REUTERS

French President Francois Hollande attends news conference after the European Union summit- the first one since Britain voted to quit- in Bratislava, Slovakia, September 16, 2016. REUTERS/Leonhard Foeger

A woman holds her smart phone, which displays the Google home page, in this picture illustration taken February 24, 2016. REUTERS/Eric Gaillard/Illustration/File Photo

School children hold candles and placards during a vigil for the soldiers who were killed after gunmen attacked an Indian army base in Kashmir's Uri on Sunday, in Agartala, India, September 19, 2016. REUTERS/Jayanta Dey

Syrian refugee children play at Azraq refugee camp for Syrians displaced by conflict, near Al Azraq city, Jordan, September 9, 2016. REUTERS/Muhammad Hamed

Traders work at their desks in front of the German share price index, DAX board, at the stock exchange in Frankfurt, Germany, September 7, 2016. REUTERS/Staff/Remote