Upgradation works commence on Niš–Dimitrovgra rail section, Serbia May 3, 2024 | Europe News, News Upgradation works have commenced on the 86-km-long railway section between Niš and Dimitrovgrad near Pirot in Serbia. This is the only section of Corridor X of the Trans-European Transport Network (TE... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password