SMRT trains at Jurong East station.
SMRT said in an update at 9.13am that train services between Woodlands and Jurong East have resumed and that free bus services have ceased.
Train services on the North South Line were earlier delayed on Friday morning due to a train fault.
SMRT alerted commuters to a 30-minute delay from Woodlands to Jurong East stations at 8.31am on Twitter.
The disruption was due to a train fault, according to the tweet. Free regular bus services between Choa Chu Kang and Jurong East were available during the disruption.
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