The error is widespread and has affected polling stations in almost all of Sweden. During the night, the error was stopped and voting is continuing as planned.
"We will come back with more information as soon as we know, but we need some time to analyse. But we see that it is a very serious incident," the authority's chief of staff Anna Nyqvist tells TT.
The agency received information from a municipality that had discovered the problem and then started troubleshooting. The cause is a technical error, and there are no traces of external influence, according to Nyqvist.
The authority is now working with the IT provider, the Swedish Tax Agency, to minimise the consequences for the election results. Some of the voters will be able to be identified. Votes that cannot be identified will be rejected.
"We understand that there is concern and we are working intensively to identify as many of those affected as possible. That's 4,000 out of 1.4 million, it's a serious error but it affects a small portion of the voters who voted," says Anna Nyqvist.
Can voters concerned fix the problem by voting again on Election Day?
I don't want to answer that yet because I want us to have progressed further in the analysis work so I know how many voters it concerns.
