There will be an outage due to track maintenance work on the early morning of Tuesday 5 July causing alterations to T train services.
The 1.44am T train from Helsinki will go slower than usual arriving at Riihimäki 9 minutes later than usual.
The 3.11am T train from Riihimäki to Helsinki will leave at 3.29am. The train will leave from Kerava at 4.09am instead of the normal 3.46am.
These trains will not have low-floor carriages.
The 04.11am train from Riihimäki to Helsinki and the 4.46am train from Kerava to Helsinki will be operated with low-floor trains.