@larstransportworld Hmm, for some reason I had always in my mind associated the name Tornedalen with a much smaller area, just the area around the river where it forms the border between Sweden and Finland. But you are right, as this map from Wikipedia shows, the darker red is Tornedalen.
If you compare to the catchment area of Torne River, Tornedalen is then a bit larger than that. So it is not a geographical concept.

@larstransportworld Oh good grief. When Swedish long-distance night trains are delayed, they are seriously delayed.
Edit: Or is this a joke? Can’t see that delay on https://www.sj.se/trafikinformation/tag/93?date=2025-08-22