Japan’s Prime Minister Shinzo Abe (R), Turkey’s Prime Minister Tayyip Erdogan (3rd R) and Somalia’s President Hassan Sheikh Mohamud (2nd R) stand around Turkey’s President Abdullah Gul (seated) as they ride the ceremonial service of a train during the opening ceremony of Marmaray, a subway which links Europe with Asia some 60 metres below the Bosphorus Strait, in Istanbul, in this October 29, 2013 file picture. Turks intrigued by Istanbul’s new underwater rail line linking Europe and Asia are overcrowding trains by riding to and fro under the Bosphorus, forcing closure of one station and causing delays by pressing emergency stop buttons, state railways said. The service was also hit by a brief power cut in the morning rush hour, prompting television footage of passengers walking through the tunnel next to a stationary train. Picture taken October 29, 2013. REUTERS/Murad Sezer/Files (TURKEY – Tags: POLITICS TRANSPORT BUSINESS)