Power supply was shut down for 30 minutes and services disrupted on Friday after a problem with the third rail, which supplies powers to train, was reported.
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According to a post on SMRT's Facebook page at about noon, it said speed restrictions have been imposed and added that free bus services would be provided.
Here is SMRT's statement in full:
We have been informed of a defective third rail along the Simei-Tanah Merah stretch. For passenger safety, speed restrictions have been imposed, and SMRT engineers are currently on site to carry out investigations.
An approximate 30 minute power shutdown between Tanah Merah and Pasir Ris MRT station is now underway. This is so that engineers can rectify the fault safely. Free bus services will be provided.
We seek the understanding and cooperation of everyone as we conduct repair works.