A United Parcel Service (UPS) truck on delivery is pictured in downtown Los Angeles, California October 29, 2014. REUTERS/Mike Blake

People speak together near a logo of Airbus Group during the Airbus annual news conference in Colomiers, near Toulouse, January 13, 2015. REUTERS/Regis Duvignau/File Picture

An employee works at a Tmall logistic centre in Suzhou, Jiangsu province, China, October 28, 2015. Picture taken October 28, 2015. REUTERS/Aly Song/File Photo

An employee works at a Tmall logistic centre in Suzhou, Jiangsu province, China, October 28, 2015. REUTERS/Aly Song/File Photo

Free Syrian Army fighters launch a Grad rocket from Halfaya town in Hama province, towards forces loyal to Syria's President Bashar al-Assad stationed in Zein al-Abidin mountain, Syria September 4, 2016. REUTERS/Ammar Abdullah

Storm clouds are seen above the Canary Wharf financial district in London, Britain, August 3, 2010. REUTERS/Greg Bos/File Photo

An employee poses for photographs with Samsung Electronics' Galaxy Note 7 new smartphone at its store in Seoul, South Korea, September 2, 2016. REUTERS/Kim Hong-Ji/File Photo

People walk past a sign reading "United Russia" on a building in central Stavropol, Russia, September 18, 2016. REUTERS/Eduard Korniyenko