A downed electrical line between Norrköping and Mjölby brought train service in Östergötland on Tuesday.
Hundreds of passengers were stranded for several hours on trains that had lost power and were left resting on the tracks.
One track was opened shortly after 9.30pm on Tuesday evening, while officials from Sweden’s National Transport Agency (Trafikverket) admitted that its initial estimate of having a second track open by 8am on Wednesday morning would not be met.
The agency now projects service will resume around 10am.
“We found some additional problems what we couldn’t see in the dark yesterday,” said Transport Agency spokesperson Tobbe Lundell to the TT news agency.
Three trains stopped in their tracks in Östergötland on Tuesday. According to national rail operator SJ, between 700 and 800 passengers were on board and needed to be evacuated.