A previous stop in train traffic between Katrineholm and Södertälje is causing major subsequent delays on the western and southern main line on Thursday.
The stop occurred at 1 pm due to a power failure and traffic was back in operation for the first time at 5 pm.
Passengers are affected on the routes Stockholm–Göteborg, Stockholm–Oslo, Stockholm–Malmö as well as Ljusdal–Linköping.