In a tweet on Wednesday, Iranian FM Zarif highlighted the importance of the Khaf-Herat railway noting that its significance is not only for Iran & Afghanistan but for the greater region.
"The Khaf-Herat railway�s significance is not only for Iran & Afghanistan, but for the greater region," he tweeted.
"As a gateway that'll boost trade and people-to-people exchanges, it will also contribute to regional stability & development. Turning our frontiers into bridges is a priority," Zarif added.

Iranian Transport and Urban Development Minister Mohammad Eslami said the government has invested over 28 trillion rials (over $666.6 million) for the completion of the Khaf-Herat railway project which is due to be officially inaugurated tomorrow.
The 222-kilometers-long Khaf-Herat is part of the Iran-Afghanistan rail corridor. The project started in the fiscal year of 2007-2008, connects Iran�s eastern city of Khaf to Afghanistan�s western city of Ghoryan.
According to Minister Eslami, the inauguration ceremony will be attended by the presidents of the two countries as well as the two sides� transport ministers.