report in Dawn, Dec 13th, 2020
QUETTA: The goods train service between Pakistan and Iran was suspended after unidentified attackers blew up the tracks near Mastung late on Saturday evening.
The train service links Quetta with the Iranian city of Zahedan. Officials of Pakistan Railways while confirming the blast at the railway track said that an improvised explosive device was planted at the track at a railway crossing in Wali Khan area of Mastung district.
A portion of the railway track was blown up in the powerful blast that rocked the small town. Fortunately, no one was injured in the blast.
Security forces cordoned off the area after the blast.
https://www.dawn.com/news/1595463/railway-track-blown-up