Signalling fault on North-South Line

[NSL] CLEARED: Train services from #Bishan to #Sembawang have resumed.

[NSL]UPDATE:Fault cleared, trains are progressively returning to normal speed. Pls add 10mins travel time from #Bishan to #Sembawang.

[NSL] UPDATE: Pls cater 15 mins additional travel time from #Bishan to #Sembawang. We are working to recover service.