State road D.100 (Turkey)

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D.100, publicly known as E-5, is a long state road running west to east across Turkey. It starts at Kapıkule near the Bulgarian border and ends at Gürbulak near the Iranian border, covering about 1,788 km (1,111 miles). Along the way it crosses many north–south state roads, such as D.650, D.750, D.850 and D.950, and it forms part of European Route E-80 (TEM Road). The route was officially renamed D.100 in 1992, but many still refer to it as E-5; today E-5 runs from Scotland to Spain. On March 10, 2017, a Sikorsky S-76 helicopter owned by Swan Aviation hit the Endem TV Tower antenna in heavy fog and crashed onto D.100, killing all seven people on board.