The country has three rail links: one, a  line from Mazar-i-Sharif to the Uzbekistan border; a  long line from Toraghundi to the Turkmenistan border (where it continues as part of Turkmen Railways); and a short link from Aqina across the Turkmen border to Kerki, which is planned to be extended further across Afghanistan. These lines are used for freight only and there is no passenger service. A rail line between Khaf, Iran and Herat, western Afghanistan, intended for both freight and passengers, is under construction as of 2019. About  of the line will lie on the Afghan side. There are various proposals for the construction of additional rail lines in the country.