Completely different, the Norwegian discovery is in the southeast of Norway while the Swedish discovery is in Kiruna, north of the Arctic circle.
The culprit is the Sami people that just happened to live there before the more powerful swedish government annexed it. Who is right? The people who were here first herding reindeer or the government? Not a trivial question to answer if you take a step back.
Unless a train derails. Once. Or twice. Or, out of a sudden, it become too warm in May. Then some minor mines start to close. (Just telling it as it is, lol. Who knows what happens next)
But this route has delivered iron ore reliably for probaly 100 years now. The iron ore from Sweden was (somewhat paradoxically) the main reason Hitler invaded Norway.