Mälartrafik announces that there are delays of up to 30 minutes, which may last throughout the day.
A stone had fallen onto the track, but it is gone now, says the Swedish Transport Agency.
– We have contacted a geologist who will investigate the area so that there will be no more landslides and in the meantime the trains will pass at a reduced speed, 30 km/h, says Katarina Wolffram at the Swedish Transport Agency’s press service.
There is currently no forecast for when the trains can run at normal speed, which will affect train traffic.