MRT stations between Tanah Merah and Changi Airport, as well as between Lakeside and Joo Koon will close at 11pm on some days in April and early May.
According to SMRT on Friday (31 March), these stations will close early for renewal work and track maintenance at railway junctions.
The rail operator said the early closure ensures that engineering staff will have additional time for maintenance work to replace rails worn out by wear and tear.
Announcements will be made to passengers to inform them of the closure. SMRT staff at stations will also provide assistance to commuters.
SMRT added that more early closures are expected in June along stretches of the North-South line and other stretches of the East-West Line.
The dates are as follows:
No train service from Lakeside to Joo Koon (both bounds) from 11pm on 14 April and 21 April.
No train service from Tanah Merah to Changi Airport (both bounds) from 11pm on 28 April and 5 May