It opened on 19 July 1926 between Schaerbeek and Watermael railway stations.

[1] It was built to bypass Brussels before the 1952 North–South connection existed.

Today, all passenger trains using the line travel from Vilvoorde on a branch line called 26/1 and not from Schaerbeek, to various destinations south of Brussels.

Some of these use the Schuman-Josaphat tunnel, which branches off just south of Meiser station.

This European rail transport related article is a stub.