Luxembourg's railways, the CFL, have announced that rail traffic is currently interrupted on line 60 between Bettembourg and Belval-Université, in both directions.
This disruption is the result of a technical issue on the infrastructure in Esch-sur-Alzette.
The CFL has set up a substitute bus service, with buses running from Bettembourg to Belval-Université and vice versa.
Maintenance teams are on site to resolve the problem.
It is not yet known how long this disruption will last.