Page "Transport in Bulgaria" Paragraph 9

In 1998 the first six kilometers of an often-interrupted 52-kilometer standard gauge subway project ( Sofia Metro ) opened in Sofia.

Additional stations were opened recently and with the last one that opened on the 7th of September 2009, the subway reached total length of 18 kilometers with 14 stations.

Construction of the second line started in December 2008, which is due to be opened according to initial forecasts by the end of 2012.