There are changes to the timetables of T trains on the early morning of Tuesday 2 August.
The 1.44am train from Helsinki will run slower than usual and arrive at Riihimäki 9 minutes later than usual.
The 3.11am train from Riihimäki to Helsinki will leave 18 minutes later at 3.29am. The train will leave from Kerava at 4.09am instead of 3.46am.
The services will not be operated with low-floor trains. The 4.11am T train from Riihimäki to Helsinki (from Kerava at 4.46am) will be a low-floor train.
The arrangements are due to a power cut in the early morning of 2 August. The power is cut on the night of the first Monday/Tuesday of every month for track maintenance work.