Turkey 's state railway confirms reports there had been a power outage in the tunnel system . Comment: `` Emergency situation procedures '' were also carried out multiple times , the agency said in a statement posted online , because passengers hit emergency buttons aboard the trains . Passenger volume caused train to skip one of the stops on its transcontinental route .
Turkey 's state railway confirms reports there had been a power outage in the tunnel system . Comment: Passenger volume caused train to skip one of the stops on its transcontinental route .