The strike began on Monday morning, leaving over 75,000 passengers stranded.
Now planned maintenance work for the service between Malmö and Lund will affect passengers further as the plan was to refer passengers to the Öresund train network who are still on strike. Replacement buses will now be used instead.
The Seko union is currently discussing plans to extend the plan to include the Krösatågen service in Småland, Kustpilen in Östergötland and the regional Pågatågen service across Skåne.
"It's one of the questions that will come up today," Erik Sandberg at Seko told the TT news agency.
Workers are striking against their employer, Veolia, which the Seko union claims has fired 250 people only to rehire them under worse conditions.
It remains unknown exactly how long the strike will continue. Trains from Malmö have also stopped running to Gothenburg, Kalmar, and even one the Snälltåget line to Stockholm.
Story continues below…
Photo: Johan Nilsson/TT