Tram 4 will be diverted on the nights of Wednesday 18 September and Thursday 19 September from midnight to 5am due to track work in Katajanokka.
Wednesday night 18 September midnight to 5am
Tram 4 will run to the Market Square and turn around there. The tram will not serve Katajanokka.
Thursday night 19 September midnight to 5am
Tram 4 will run to the Kajanokka Terminal instead of Merisotilaantori.